Forging Parts, Industrial Machinery Parts, Casting & Forging manufacturer / supplier in China, offering En 10088-2 1.4510 X3crti17 Hot Rolled Seamless Polish Round High Precision Stainless Steel Tube Pipe, 316L Cold Drawn Seamless Polished High-Precision Stainless Steel Tube Used for Boilers and Drilling Rigs, Ck45 Cold Drawn Precision Seamless Steel Tube ASTM GS Certified Carbon Steel for Oil Boiler Drill Welding Cutting and so on.