... OEM manufacture Semi trailer double air brake chamber 1. Trailer & Truck Parts Manufacturer2. 4 Production Lines 3. OEM Quality 4. ... 5.Inlet: 3/8”, M16X1.5 FactoryWorkshopLand Transport Equipment Co., Ltd. is an ISO9002, QS, and ISO/TS16949 certified company, ... Casts, Steel Casts, Forged Parts, and others. We manufacture Quality Truck & Trailer Axle Parts, Suspension Parts, Fifth Wheels, King Pins, ...