... of tire valves,tyre valves,auto tire valves,and inner tube valves.The following are our main valves: TR412,TR413 ... TR413C,TR414C,TR418C TR412AC,TR413AC,TR414AC,TR418AC V3.20.1,V3.20.4,V3.20.6 PVR30,PVR30,VAMD161 ... strong ability of developing and producing new valves products.(1)conforming to international standards(2)products can be made ... quality,best serviceWe are always here for you! inner tube valves