Our company supply air brake valves for heavy-duty trucks . Our main products includes foot brake valves, hand brake valves ,clutch servos and spring brake chambers, AUTOMATIC LOAD SENSING VALVE, BOTTOM VAVLE,CLUTH, CLUTH BOOSTER, CLUTH,FOOT BRAKE VALVE,FOUR-CIRCUIT PROTECTION VALVE, HEIHGT CONTROLING VALVE,RELAY VALVE, Solenoid VALVE,TRAILER CONTROL VALVE,UNLOADER VALVEetc, There are more than 80 types of sucm item available . All products have been exported to many foreign countries and regins , such as Iran, South Africa,Chile,Colombia and so on.