White Shell UFO Highbay Lights,LED Round High Bay Light,Waterproof Round High Bay Lights,UFO High Bay LED Lighting Vietnam JJ Lighting Company , https://www.vnjjlighting.com
51 Steel Pipe Net () Provides: Precision Seamless Steel Pipe Knowledge Precision seamless steel pipe is a kind of high-precision steel pipe after cold drawing or hot rolling. Because the inner and outer walls of the precision seamless steel pipe have no oxide layer, can withstand high pressure, no leakage, high precision, high finish, cold bending, deformation, flaring, flattening and no cracks, they are mainly used to produce pneumatic or hydraulic components. The cylinders or cylinders are all seamless. The chemical composition of precision seamless steel tubes is carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and chromium Cr.