Wuxi Chuanghui Metal Product Co.,Ltd is one of the leading China cold rolled steel s45c manufacturers and suppliers,Website:://.cnchjs.com, welcome to import high-quality and professional cold rolled steels, cold rolled steel coil, cold rolled steel sheet, cold rolled stainless steel sheet from our factory. Seamless steel pipe introduction Seamless steel pipe is hollow section, a large number of used for conveying fluid pipe, such as oil, natural gas, coal gas, water and some solid materials, such as pipelines.Compared to the steel pipe and round steel solid steel bending torsional strength phase at the same time, the weight is lighter, is a kind of economic cross section steel, widely used in the manufacture of structural and mechanical parts, such as petroleum drill pipe, auto transmission shaft, bicycle frame and construction of steel scaffolding is used with steel pipe manufacturing annular parts, such as can improve material utilization, simplifying the manufacturing process, material saving and processing time, has been widely used to make steel pipe.    seamless alloy steel pipe and steel tube 13mm