Working Principle of Brake BoosterThe vacuum booster is generally located between the brake pedal and the brake master cylinder, the part of the master cylinder penetrates into the vacuum booster housing. The main principle is to use a vacuum (negative pressure) to increase the force applied by the driver to the pedal. The thrust generated by the vacuum servo air chamber, like the pedal force, acts directly on the brake master cylinder push rod.

GDST AUTO PARTS CO., LTD

1. We GDST supplies the high quality Auto Parts for Korea and Japanese, Europen and American Cars.2. We have nearly 20 years experience in producing Brake Cylinder and Shock Absorber.3. In order to better serve every customer for their different requirements, we are constantly expanding our products, aim to create a one-stop auto parts procurement platform.4. Now we also supply brake pad, brake caliper, brake disc, clutch release bearing, wheel hub, steering rack, auto filters, auto cable, fuel pump, water pump, suspension parts, and so on.5. We sell our goods to the American, Europe and Middle East. Getting consistent high praise from all the customers.

1. Are you a trading company or factory? We are factory with 20 years manufacturer expeirence, and we also have trading department.2. What products does your company supply? Brake parts: brake cylinder, clutch cylinder, brake pads, brake disc, brake shoe, etc Suspension Parts: shock absorber, control arm, ball joint, tie rod end, steering rack, etc Bushing: engine mount, shock mount, control arm bushing, stabilizer bushing,other suspension bushing. Wheel Hub, CV joint, drive shaft, oil filter, air filter, fuel filter, oil pump, water pump, radiator, etc3. Which countries have you exported? We have sold our products to 100 countries all over the world, including North and South America, Europe, Southeast Asia, Africa, Australia and so on.4. What’s your min order quantity? Our MOQ is 50 to 300PCS.5. What is your delivery time? It depends on your order quantity and our stocks. Usually we can ship within 15-30 days for small quantity, and about 45-60 days for large quantity.6. What’s your quality guarantee? Basically, our hydraulic brake assures 12 months or 30.000kms, every client will get our lifelong after-sale service.7. What kind of certificate of your factory? We are qualified with IATF 16949.8. Can you use my package design? Sure, all you need is to provide us your certificate of trademark registration and authorization paper.9. Do you test all your goods before delivery? Yes sure, we have 100% quality test before delivery.10. Could I get your sample? Sure, if we have stock, we can send the sample to you for free. Your side just need to pay the freight, but it will return back once you place an order.