Seamless Steel Pipe/Tube, Carbon Seamless Steel Pipe/Tube, Seamless Pipe/Tube manufacturer / supplier in China, offering Precision Seamless Steel Tubes C35e/C45e That Can Be Used as Drive Shafts and Transmission Shafts En 10305-1, Precision Seamless Steel Tube 26mo2/C45e OEM Factory, Customizable According to Requirements En 10305-1, DIN 2391 High-Quality German Standard Precision Cold Drawn Seamless Steel Tube St35/St 37.4 and so on.