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Wednesday, September 18, 2013

Voltage regulator...what you should know....for your philippine electrical concerns...needs...installation...orders...safeelectrical2013@gmail.com

Voltage regulator


A popular three pin +12 V DC voltage regulator IC.
voltage regulator is designed to automatically maintain a constant voltage level. A voltage regulator may be a simple "feed-forward" design or may include negative feedback control loops. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages.
Electronic voltage regulators are found in devices such as computer power supplies where they stabilize the DC voltages used by the processor and other elements. In automobile alternators and central power station generator plants, voltage regulators control the output of the plant. In anelectric power distribution system, voltage regulators may be installed at a substation or along distribution lines so that all customers receive steady voltage independent of how much power is drawn from the line.

Measures of regulator quality[edit source | editbeta]

The output voltage can only be held roughly constant; the regulation is specified by two measurements:
  • load regulation is the change in output voltage for a given change in load current (for example: "typically 15 mV, maximum 100 mV for load currents between 5 mA and 1.4 A, at some specified temperature and input voltage").
  • line regulation or input regulation is the degree to which output voltage changes with input (supply) voltage changes - as a ratio of output to input change (for example "typically 13 mV/V"), or the output voltage change over the entire specified input voltage range (for example "plus or minus 2% for input voltages between 90 V and 260 V, 50-60 Hz").
Other important parameters are:
  • Temperature coefficient of the output voltage is the change with temperature (perhaps averaged over a given temperature range).
  • Initial accuracy of a voltage regulator (or simply "the voltage accuracy") reflects the error in output voltage for a fixed regulator without taking into account temperature or aging effects on output accuracy.
  • Dropout voltage is the minimum difference between input voltage and output voltage for which the regulator can still supply the specified current. A low drop-out (LDO) regulator is designed to work well even with an input supply only a volt or so above the output voltage. The input-output differential at which the voltage regulator will no longer maintain regulation is the dropout voltage. Further reduction in input voltage will result in reduced output voltage. This value is dependent on load current and junction temperature.
  • Absolute maximum ratings are defined for regulator components, specifying the continuous and peak output currents that may be used (sometimes internally limited), the maximum input voltage, maximum power dissipation at a given temperature, etc.
  • Output noise (thermal white noise) and output dynamic impedance may be specified as graphs versus frequency, while output ripplenoise (mains "hum" or switch-mode "hash" noise) may be given as peak-to-peak or RMS voltages, or in terms of their spectra.
  • Quiescent current in a regulator circuit is the current drawn internally, not available to the load, normally measured as the input current while no load is connected (and hence a source of inefficiency; some linear regulators are, surprisingly, more efficient at very low current loads than switch-mode designs because of this).
  • Transient response is the reaction of a regulator when a (sudden) change of the load current (called the load transient) or input voltage (called the line transient) occurs. Some regulators will tend to oscillate or have a slow response time which in some cases might lead to undesired results. This value is different from the regulation parameters, as that is the stable situation definition. The transient response shows the behaviour of the regulator on a change. This data is usually provided in the technical documentation of a regulator and is also dependent on output capacitance.
  • Mirror-image insertion protection means that a regulator is designed for use when a voltage, usually not higher than the maximum input voltage of the regulator, is applied to its output pin while its input terminal is at a low voltage, volt-free or grounded. Some regulators can continuously withstand this situation; others might only manage it for a limited time such as 60 seconds, as usually specified in the datasheet. This situation can occur when a three terminal regulator is incorrectly mounted for example on a PCB, with the output terminal connected to the unregulated DC input and the input connected to the load. Mirror-image insertion protection is also important when a regulator circuit is used in battery charging circuits, when external power fails or is not turned on and the output terminal remains at battery voltage.

Electronic voltage regulators[edit source | editbeta]

A simple voltage regulator can be made from a resistor in series with a diode (or series of diodes). Due to the logarithmic shape of diode V-I curves, the voltage across the diode changes only slightly due to changes in current drawn or changes in the input. When precise voltage control and efficiency are not important, this design may work fine.
Feedback voltage regulators operate by comparing the actual output voltage to some fixed reference voltage. Any difference is amplified and used to control the regulation element in such a way as to reduce the voltage error. This forms a negative feedback control loop; increasing theopen-loop gain tends to increase regulation accuracy but reduce stability (avoidance of oscillation, or ringing during step changes). There will also be a trade-off between stability and the speed of the response to changes. If the output voltage is too low (perhaps due to input voltage reducing or load current increasing), the regulation element is commanded, up to a point, to produce a higher output voltage–by dropping less of the input voltage (for linear series regulators and buck switching regulators), or to draw input current for longer periods (boost-type switching regulators); if the output voltage is too high, the regulation element will normally be commanded to produce a lower voltage. However, many regulators have over-current protection, so that they will entirely stop sourcing current (or limit the current in some way) if the output current is too high, and some regulators may also shut down if the input voltage is outside a given range (see also: crowbar circuits).

Electromechanical regulators[edit source | editbeta]

Circuit design for a simple electromechanical voltage regulator.
A voltage stabilizer using electromechanical relays for switching.
Graph of voltage output on a time scale.
In electromechanical regulators, voltage regulation is easily accomplished by coiling the sensing wire to make an electromagnet. The magnetic field produced by the current attracts a moving ferrous core held back under spring tension or gravitational pull. As voltage increases, so does the current, strengthening the magnetic field produced by the coil and pulling the core towards the field. The magnet is physically connected to a mechanical power switch, which opens as the magnet moves into the field. As voltage decreases, so does the current, releasing spring tension or the weight of the core and causing it to retract. This closes the switch and allows the power to flow once more.
If the mechanical regulator design is sensitive to small voltage fluctuations, the motion of the solenoid core can be used to move a selector switch across a range of resistances or transformer windings to gradually step the output voltage up or down, or to rotate the position of a moving-coil AC regulator.
Early automobile generators and alternators had a mechanical voltage regulator using one, two, or three relays and various resistors to stabilize the generator's output at slightly more than 6 or 12 V, independent of the engine's rpm or the varying load on the vehicle's electrical system. Essentially, the relay(s) employedpulse width modulation to regulate the output of the generator, controlling the field current reaching the generator (or alternator) and in this way controlling the output voltage produced.
The regulators used for DC generators (but not alternators) also disconnect the generator when it was not producing electricity, thereby preventing the battery from discharging back into the generator and attempting to run it as a motor. Therectifier diodes in an alternator automatically perform this function so that a specific relay is not required; this appreciably simplified the regulator design.
More modern designs now use solid state technology (transistors) to perform the same function that the relays perform in electromechanical regulators.
Electromechanical regulators are used for mains voltage stabilisation—see AC voltage stabilizers below.

Coil-rotation AC voltage regulator[edit source | editbeta]

Basic design principle and circuit diagram for the rotating-coil AC voltage regulator.
This is an older type of regulator used in the 1920s that uses the principle of a fixed-position field coil and a second field coil that can be rotated on an axis in parallel with the fixed coil, similar to a variocoupler.
When the movable coil is positioned perpendicular to the fixed coil, the magnetic forces acting on the movable coil balance each other out and voltage output is unchanged. Rotating the coil in one direction or the other away from the center position will increase or decrease voltage in the secondary movable coil.
This type of regulator can be automated via a servo control mechanism to advance the movable coil position in order to provide voltage increase or decrease. A braking mechanism or high ratio gearing is used to hold the rotating coil in place against the powerful magnetic forces acting on the moving coil.

AC voltage stabilizers[edit source | editbeta]

Magnetic mains regulator

Electromechanical[edit source | editbeta]

Electromechanical regulators called voltage stabilizers or tap-changers, have also been used to regulate the voltage on AC power distribution lines. These regulators operate by using a servomechanism to select the appropriate tap on an autotransformer with multiple taps, or by moving the wiper on a continuously variable autotransfomer. If the output voltage is not in the acceptable range, the servomechanism switches the tap, changing the turns ratio of the transformer, to move the secondary voltage into the acceptable region. The controls provide a deadband wherein the controller will not act, preventing the controller from constantly adjusting the voltage ("hunting") as it varies by an acceptably small amount.

Constant-voltage transformer[edit source | editbeta]

The ferroresonant transformerferroresonant regulator or constant-voltage transformer is a type of saturating transformer used as a voltage regulator. These transformers use a tank circuitcomposed of a high-voltage resonant winding and a capacitor to produce a nearly constant average output voltage with a varying input current or varying load. The circuit has a primary on one side of a magnet shunt and the tuned circuit coil and secondary on the other side. The regulation is due to magnetic saturation in the section around the secondary.
The ferroresonant approach is attractive due to its lack of active components, relying on the square loop saturation characteristics of the tank circuit to absorb variations in average input voltage. Saturating transformers provide a simple rugged method to stabilize an AC power supply.
Older designs of ferroresonant transformers had an output with high harmonic content, leading to a distorted output waveform. Modern devices are used to construct a perfect sine wave. The ferroresonant action is a flux limiter rather than a voltage regulator, but with a fixed supply frequency it can maintain an almost constant average output voltage even as the input voltage varies widely.
The ferroresonant transformers, which are also known as Constant Voltage Transformers (CVTs) or ferros, are also good surge suppressors, as they provide high isolation and inherent short-circuit protection.
A ferroresonant transformer can operate with an input voltage range ±40% or more of the nominal voltage.
Output power factor remains in the range of 0.96 or higher from half to full load.
Because it regenerates an output voltage waveform, output distortion, which is typically less than 4%, is independent of any input voltage distortion, including notching.
Efficiency at full load is typically in the range of 89% to 93%. However, at low loads, efficiency can drop below 60%. The current-limiting capability also becomes a handicap when a CVT is used in an application with moderate to high inrush current like motors, transformers or magnets. In this case, the CVT has to be sized to accommodate the peak current, thus forcing it to run at low loads and poor efficiency.
Minimum maintenance is required, as transformers and capacitors can be very reliable. Some units have included redundant capacitors to allow several capacitors to fail between inspections without any noticeable effect on the device's performance.
Output voltage varies about 1.2% for every 1% change in supply frequency. For example, a 2 Hz change in generator frequency, which is very large, results in an output voltage change of only 4%, which has little effect for most loads.
It accepts 100% single-phase switch-mode power supply loading without any requirement for derating, including all neutral components.
Input current distortion remains less than 8% THD even when supplying nonlinear loads with more than 100% current THD.
Drawbacks of CVTs are their larger size, audible humming sound, and the high heat generation caused by saturation. Also, the regulation is not as good as solid state devices, so these units are obsolete for most purposes.

DC voltage stabilizers[edit source | editbeta]

Many simple DC power supplies regulate the voltage using a shunt regulator such as a Zener diodeavalanche breakdown diode, or voltage regulator tube. Each of these devices begins conducting at a specified voltage and will conduct as much current as required to hold its terminal voltage to that specified voltage. The power supply is designed to only supply a maximum amount of current that is within the safe operating capability of the shunt regulating device (commonly, by using a series resistor).
If the stabilizer must provide more power, the shunt regulator output is only used to provide the standard voltage reference for the electronic device, known as the voltage stabilizer. The voltage stabilizer is the electronic device, able to deliver much larger currents on demand.

Active regulators[edit source | editbeta]

Active regulators employ at least one active (amplifying) component such as a transistor or operational amplifier. Shunt regulators are often (but not always) passive and simple, but always inefficient because they (essentially) dump the excess current not needed by the load. When more power must be supplied, more sophisticated circuits are used. In general, these active regulators can be divided into several classes:
  • Linear series regulators
  • Switching regulators
  • SCR regulators

Linear regulators[edit source | editbeta]

Linear regulators are based on devices that operate in their linear region (in contrast, a switching regulator is based on a device forced to act as an on/off switch). In the past, one or more vacuum tubes were commonly used as the variable resistance. Modern designs use one or moretransistors instead, perhaps within an Integrated Circuit. Linear designs have the advantage of very "clean" output with little noise introduced into their DC output, but are most often much less efficient and unable to step-up or invert the input voltage like switched supplies. All linear regulators require a higher input than the output. If the input voltage approaches the desired output voltage, the regulator will "drop out". The input to output voltage differential at which this occurs is known as the regulator's drop-out voltage.
Entire linear regulators are available as integrated circuits. These chips come in either fixed or adjustable voltage types.

Switching regulators[edit source | editbeta]

Switching regulators rapidly switch a series device on and off. The duty cycle of the switch sets how much charge is transferred to the load. This is controlled by a similar feedback mechanism as in a linear regulator. Because the series element is either fully conducting, or switched off, it dissipates almost no power; this is what gives the switching design its efficiency. Switching regulators are also able to generate output voltages which are higher than the input, or of opposite polarity — something not possible with a linear design.
Like linear regulators, nearly-complete switching regulators are also available as integrated circuits. Unlike linear regulators, these usually require one external component: an inductor that acts as the energy storage element. (Large-valued inductors tend to be physically large relative to almost all other kinds of componentry, so they are rarely fabricated within integrated circuits and IC regulators — with some exceptions.[1][2])

Comparing linear vs. switching regulators[edit source | editbeta]

The two types of regulators have their different advantages:
  • Linear regulators are best when low output noise (and low RFI radiated noise) is required
  • Linear regulators are best when a fast response to input and output disturbances is required.
  • At low levels of power, linear regulators are cheaper and occupy less printed circuit board space.
  • Switching regulators are best when power efficiency is critical (such as in portable computers), except linear regulators are more efficient in a small number of cases (such as a 5V microprocessor often in "sleep" mode fed from a 6V battery, if the complexity of the switching circuit and the junction capacitance charging current means a high quiescent current in the switching regulator).
  • Switching regulators are required when the only power supply is a DC voltage, and a higher output voltage is required.
  • At high levels of power (above a few watts), switching regulators are cheaper (for example, the cost of removing heat generated is less).

SCR regulators[edit source | editbeta]

Regulators powered from AC power circuits can use silicon controlled rectifiers (SCRs) as the series device. Whenever the output voltage is below the desired value, the SCR is triggered, allowing electricity to flow into the load until the AC mains voltage passes through zero (ending the half cycle). SCR regulators have the advantages of being both very efficient and very simple, but because they can not terminate an on-going half cycle of conduction, they are not capable of very accurate voltage regulation in response to rapidly-changing loads. An alternative is the SCR shunt regulator which uses the regulator output as a trigger, both series and shunt designs are noisy, but powerful, as the device has a low on resistance.

Combination (hybrid) regulators[edit source | editbeta]

Many power supplies use more than one regulating method in series. For example, the output from a switching regulator can be further regulated by a linear regulator. The switching regulator accepts a wide range of input voltages and efficiently generates a (somewhat noisy) voltage slightly above the ultimately desired output. That is followed by a linear regulator that generates exactly the desired voltage and eliminates nearly all the noise generated by the switching regulator. Other designs may use an SCR regulator as the "pre-regulator", followed by another type of regulator. An efficient way of creating a variable-voltage, accurate output power supply is to combine a multi-tapped transformer with an adjustable linear post-regulator.

Example linear regulators[edit source | editbeta]

Transistor regulator[edit source | editbeta]

In the simplest case emitter follower is used, the base of the regulating transistor is directly connected to the voltage reference:
Voltage stabiliser transistor, IEC symbols.svg
The stabilizer uses the power source, having voltage Uin that may vary over time. It delivers the relatively constant voltage Uout. The output load RL can also vary over time. For such a device to work properly, the input voltage must be larger than the output voltage and Voltage drop must not exceed the limits of the transistor used.
The output voltage of the stabilizer is equal to UZ - UBE where UBE is about 0.7 V and depends on the load current. If the output voltage drops below that limit, this increases the voltage difference between the base and emitter (Ube), opening the transistor and delivering more current. Delivering more current through the same output resistor RL increases the voltage again. When the output voltage increases, due to the reduced base-emitter voltage the BJT will conduct less and the regulation will be maintained.
Rv value limits the maximum output current Iout, therefor has a upper limits. Rv (as a rough estimate) should not be larger than (UIn - Uz) / IB, where IB is maximum Iout divides transistor's current amplification ratio.

Regulator with an operational amplifier[edit source | editbeta]

The stability of the output voltage can be significantly increased by using an operational amplifier:
Voltage stabiliser OA, IEC symbols.svg
In this case, the operational amplifier drives the transistor with more current if the voltage at its inverting input drops below the output of the voltage reference at the non-inverting input. Using the voltage divider (R1, R2 and R3) allows choice of the arbitrary output voltage between Uzand Uin.


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        or any kindness I can show to any human being;   
        let me do it now. Let me not defer nor neglect it,
        for I shall not pass this way again.”

              Etienne de Grellet  (1773-1855);
              Quaker missionary

If you wanna make the world a better place
take a look at yourself and make a change  
                  - Michael Jackson

"The Best things in life are FREE,
        Family, Relatives, Friends, Health and most especially Time"


Our company operates in the principle of cooperation, collaboration, 
joint partnership/marketing and cross promotion.

We treat our people,clients,suppliers,affiliates
subcontractors, business owners, entrepreneurs(SMALL TIME or Bigtime),

common people,sales people especially PURCHASING OFFICERS as our business partners and friends.
We operate in the principle of Win-Win in every transactions we get involved in 

and our company would like to establish good long-term relationship with the client we serve...
We value and aim for REPEAT BUSINESS...and not just for a one-time transaction...


Delivery Schedule:  9am to 10pm Monday to Friday Only

OFFICE DAYS:  Monday to Friday Only
              9-12PM TO 1-5PM ONLY
              
              Saturday: Lord's day "EL SHADDAI" The God who is more than enough
              Sunday:   Family day

10% of what the company earns, we give to the Lord,
10% of what the company earns, we give to charity,
this is the company's way of giving back part of what it earns,
to the community and above.            



"It is unwise to pay too much, but it's worst to pay too little.
    When you pay too much, you lose a little money - that is all...
 When you pay too little, You sometimes lose everything,
    Because the thing you bought or the service you acquired
      was incapable of doing the thing it was bought or intended to do.
 The common law of business balance 
    prohibits paying a little and getting a lot - it can't be done.
       If you deal with the lowest bidder,
          It is well to add something for the risk you run,
             And if you do that, 
                You will have enough to pay for something better." 

                       - JOHN RUSKIN(1819 - 1900)

"Good things aren't cheap,
                 and cheap things aren't good"


HEALTH TIPS  HEALTH TIPS  HEALTH TIPS  HEALTH TIPS  HEALTH TIPS  HEALTH TIPS

ATTENTION:         FOR ALL INDIVIDUALS ESPECIALLY THOSE AGE 40 AND ABOVE.


MEDICAL EXPERIMENT - MIRACLES WITH WATER

Japanese Sickness Association has published the following experiment with WATER.

They Claim 100% success for curing old and new diseases as follows:

1. Headache, BP, Anaemia, Arthrosis, Paralysis, Palpitation, Epilepsy and Obesity

2. Cough, Bronchitis, Asthma, and Tuberculosis

3. Meningitis and any other diseases connected with URINE and LIVER.

4. Hyper-acidity, Gastritis, Dysentery, Constipation, Piles and Diabetes

5. Any other diseases connected with Eye, Nose and Throat.

6. Irregular menstrual periods of women



METHOD OF TREATMENT AND MAINTENANCE:

1. Wake-up early morning and drink Four(4) glasses (160ml each) in an empty stomach. 

    Thereafter, no solids or liquids should be taken up to 45 minutes.

2. Normal breakfast can be taken after the 45 minutes time elapsed.

3. Nothing either liquid or solid should be taken  for Two(2) hours after breakfast, the same as with Lunch and Dinner.

4. After Dinner nothing should be taken before bedtime or sleep.

Sick and old people will find it difficult to drink Four(4) glasses of water at an  instant in the beginning, but, can increase

gradually to the recommended level in a short time period.

Experiment has proved that the following diseases have been cured on treatment of water for the period shown against them

a) Hypertension - 30 days                  d) Constipation  - 10 days

b) Gastric Problems - 30 days           e) Cancer - 6 months

c) Diabetes  - 30 days                         f) Tuberculosis  - 3 months

Those who suffering from Arthritis should try this experiment three(3) times a day for one(1) week and thereafter reduce to 

once in the morning. For first few days you may experience to pass urine more than the norma, but no side effects.



THIS WILL CLEANSED YOUR BODY OF IMPURITIES AND WILL

PREVENT MANY TYPES OF DISEASES...



EXERCISE RELIGIOUSLY...

AS THE SAYING GOES "HEALTH IS WEALTH"



REMEMBER:

70% of our body is made up of water...
only 30% of our body is solid...


HEALTH  IS WEALTH...
WHAT'S THE USE OF HAVING A BILLION 
                                             BUT LYING IN A BED - SICK
                                                                    OR SUFFERING FROM AN ILLNESS.....

I WOULD RATHER HAVE A CLEAN BILL OF HEALTH FOR A BILLION.

WHEN YOU REACH THE AGE OF 35 EXERCISE IS A MUST...
WATCH YOUR DIET...

EXERCISE DAILY AND RELIGIOUSLY
TAKE YOUR MULTIVITAMINS TO SUPPLEMENT YOUR FOOD INTAKE....

THE BEST THINGS IN LIFE ARE FREE.....
           FAMILY....RELATIVES....FRIENDS....HEALTH and most importantly TIME....

YOU ARE MORE BLESSED THAN OTHERS...

WHEN YOU HAVE BOTH YOUR EYES SO YOU CAN CLEARLY SEE
        OTHERS HAVE ONLY ONE...OTHERS ARE TOTALLY BLIND...
WHEN YOU HAVE BOTH YOUR EARS SO YOU CAN CLEARLY HEAR
       OTHERS HAVE ONLY ONE...OTHERS ARE TOTALLY DEAF...
WHEN YOU HAVE BOTH YOUR HANDS SO YOU CAN HOLD THINGS WELL
       OTHERS HAVE ONLY ONE...OTHERS HAVE NONE...
WHEN YOU HAVE BOTH YOUR FEET SO YOU CAN WALK EASILY
       OTHERS HAVE ONE...OTHERS HAVE NONE..
WHEN YOU STILL HAVE YOUR PARENTS...
       OTHERS HAVE ONE...OTHERS HAVE NONE...
WHEN YOU HAVE CHILDREN...
      OTHERS HAVE ONE...OTHERS HAVE NONE...
WHEN YOU HAVE A FAMILY...
      SOME HAVE NONE...OTHERS TOTALLY ORPHANED
WHEN YOU ARE LIVING IN THE PHILIPPINES...A DEMOCRATIC COUNTRY..
      THE WEATHER NOT THAT EXTREMELY HOT NOR COLD..
       WERE PLANTS AND TREES GROW EASILY
       SURROUNDED BY SEAS FULL OF FISHES AND NATURAL RESOURCES
WHEN YOU ARE OLD AND STILL LIVING WITH YOUR CHILDREN
       IN SOME COUNTRIES OLD PARENTS AND PEOPLE 
            ARE LEFT IN THE "HOME OF THE AGED NURSING FOUNDATION"
WHEN YOU STILL HAVE YOUR JOB...WORKING IN AN AIR-CONDITIONED  
        ROOM..JUST CONSIDER THE CONSTRUCTION WORKERS DOING THEIR
        HARD LABOR JOBS UNDER THE HEAT OF THE SUN...IGNORING THE
        DANGEROUS ELEMENTS CONFRONTING THEM....

COUNT YOUR BLESSINGS...COUNT THEM ONE BY ONE...

DON'T THINK OF SAYING ANY UNKIND WORD...
      THINK OF PEOPLE WHO CAN'T SPEAK,
DON'T COMPLAIN ABOUT THE FOOD YOU EAT,
      SOME HAVE NOTHING.
DON'T COMPLAIN ABOUT LIFE,
      PAINT A SMILE ON YOUR FACE
AND THANK GOD YOU'RE ALIVE AND STILL AROUND

LIFE IS A GIFT......
LIVE IT WELL......

SAFETY 1ST
               REPEAT BUSINESS 2ND

PRAY ALWAYS IT WORKS!!!            

ATTENTION:  FOREIGN ELECTRICAL MANUFACTURERS AND ELECTRICAL DISTRIBUTORS

OUR COMPANY WELCOMES ELECTRICAL FOREIGN SUPPLIER/MANUFACTURER/S
WHO WOULD LIKE TO OFFER THEIR PRODUCT LINE
HERE IN THE PHILIPPINES BUT ON A CONSIGNMENT BASIS ONLY,

MEANING PAYMENT WILL BE FOR A CERTAIN PERIOD...EXAMPLE SIX(6) MONTHS TO ONE(1) YEAR,
ALL THOSE ITEMS THAT WILL NOT BE SOLD OR SLOW MOVING ITEMS WILL BE REPLACED

AND WE WILL JUST PAY FOR THOSE SOLD ITEMS


YOUR COMPANY WILL BE SHOULDERING THE FORWARDING/FREIGHT COST
OR SHIPMENT COST...

WE WILL BE IN CHARGE OF STOCKAGE,MARKETING,SALES AND AFTER SALES CONCERNS..
CONTACT,EMAIL OR CALL US IF YOUR COMPANY IS INTERESTED WITH OUR OFFER...

BY THE WAY PAYMENT WILL BE BANK TO BANK...
YOUR BANK WILL BE COORDINATING WITH OUR LOCAL BANK HERE IN THE PHILIPPINES....

CALL/EMAIL US IF YOUR COMPANY IS INTERESTED ON OUR OFFER....

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