Steel Pipes, Pipes Fittings, Socket Fittings manufacturer / supplier in China, offering Km/OEM Carbon Steel Wooden Case DN10 to DN1600 P245gh Weld Neck Flange, Welding Carbon Steel Km/OEM Wooden Case DIN Flange Type D, Carbon Steel Welding Flange Km/OEM Wooden Case DN10 to DN1600 P245gh and so on.