Our featured products are big size seamless steel pipe, hot-rolled steel pipe, hot-expanded steel pipe and spiral steel pipe .Diameter between 8"and 48",wall thickness from 6mm-60mm. Contact me: steelpipe.zhonghai@hotmail.com Mr. Daniel Sun Tel: +86-0757-28909717 Fax: +86-0757-28909897 Mobile: 13631424986 QQ: 82824000