1. When braking , the power assister chamber will push the rod on expander , then inside the expander have many small parts like sleeves , bush , spring , cage , screw will expander rapidly to two sides clip , then will pull two brake shoes in two sides to brake drum . Then emerge friction because the contact of lining and drum , so driver can control speed.

2. We know deeply that braking is most important of driver , so we cast the shell ues high strength steel , and assembling with high quality sping , piston , sleeve.

3.Can offer competitive purchase price to our client , cause we attain developed distribution channel over the world.

4.Q:What is your terms of payment?

A:T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.