Carbon Steel Pipe, Stainless Steel Pipe, Copper Nickel Tube manufacturer / supplier in China, offering Stainless Steel AISI316/304 Welded 90 Degree Pipe Fittings Elbow Socket Elbow, En10297-1 Seamless Precision Steel Tubes Circular Mechanical/Engineering Carbon/Alloy Steel, for Hydraulic Systems/Machinery, API 5L/ASTM A53 X42/X52 Welded Steel Pipe for Oil & Gas Transmission and so on.