Jiangsu Changbao Steel Tube Limited Co.

we are leading manufacturer in china specialized in producing seamless steel pipe (tubing, casing, coupling stock, drill pipe, line pipe, boiler tube, hrsg, mechanical pipe, automobil pipe, structure pipe, etc.), since 1958, size from 1/4" to 8" covering wide range of thickness. we are equiped with four hot roll lines, 10 cold drawn lines, 10 cold roll lines, 8 heat treatment lines and corresponding finishing lines and test facilities. annual capacity 1 million tons.