pressure reducing valve 1.High quality steel 2.Technics:machining 3.ISO9001:2008 No burrs and sharp edge pressure reducing valve1. Product ... CO., Ltd.(2) Main products: CNC machining precision parts: valve accessory, brass tube fittings, elbow, tee, nut; Auto- ... projector, Rockwell hardness tester, hydraulic valve test bench, micrometer, thread ring gauge and plug gauge and other regular gauges.(5) ...