We mainly specialize in producing brake valves, relay valves, brake cylinders, coupling heads, electric couplers, and hand brake Maximum operating pressure: 1MPaOperating temperature range: -40 to 80 deg. COperating pressure: 800kPa1.High quality with good material and competitive price 2.auto brake valve3.made in china4.Fast delivery and good after sales severice Truck 153 brake valve