Seamless Steel Pipe, Flange, Valve manufacturer / supplier in China, offering ANSI DIN Standard A192 Carbon Steel Seamless Pipe Hot Rolled API Certified Pipe, DN15-DN200 Carbon Steelq235 Q355 A36 A53 Seamless Welded Steel Pipe, API 5L A53 Carbon Steel DN15-DN200 Seamless Pipe and so on.