GB/T 3639 High Precision Cold Rolling or Cold Drawing Seamless Steel Pipe

GB/T 14976 Fluid Transmission Stainless Steel Seamless Pipes

GB 8713 Hvdraulic and Pneumatic Precisionlnner Diameter Seamless Steel Pipe

GB/T 12771 Stainless Steel Welded Pipes for Fluid Conveyance

GB/T 18254 HighCarbon ChromiumBearing Steel

GB/T 8163 Seamless Steel Pipes for Liquid Service

Precision Seamless Steel Pipe

Stainless steel Welded Pipe

Stainless Steel Seamless Pipe

Finished Precision Seamless Steel Pipe

Fluid Seamless Steel Pipe

Bearing Sleeve