Steel Pipes, Pipes Fittings, Socket Fittings manufacturer / supplier in China, offering En10204 3.1 or 3.2 Welding Km/OEM Wooden Case DIN Flange DIN2635, Km/OEM Carbon Steel Wooden Case DN10 to DN1600 P245gh DIN2633, DN10 to DN1600 Welding Flange Km/OEM Wooden Case P245gh DIN2526 and so on.