As a professional auto parts supplier of heavy-duty truck and trailer parts in China, especially for the brake system, we Shanghai Meiji Auto Parts Co., Ltd. are manily macufactuing gladhand, gladhand seals and filter screen, lock and shut-offs for gald hand, yoke and clevis, brake valves, drain valves, truck toolbox lock, king pin lock, springs, hose separator, couplings, air cylinder and pushrod etc... We can make product according to your specs and drawings.