... manufacture Semi trailer double air brake chamber 1. Trailer & Truck Parts Manufacturer2. 4 Production Lines 3. OEM Quality 4. ... /TS16949 certified company, engaged in the manufacture and export of Truck & Trailer Parts made of Iron/Steel, Pressed, Welded, ( ... Casts, Steel Casts, Forged Parts, and others. We manufacture Quality Truck & Trailer Axle Parts, Suspension Parts, Fifth Wheels, King Pins, ...