https://www.chinasand.cc/product/brake-chamberscam-1 The company originated fromthemechanical core team established by Sheng Zhonglin in 2003 and gradually developed. It was re-registered and established in 2007. It focuses on the production of brake chambers, brake valves and other commercialvehicle parts and components. It is a collection of R&D, manufacturing, and sales. An integrated national high-tech enterprise;