Our main products:Seamless steel pipe: OD:1/4 inch-36 inch, wall thickness:1.25mm to 50mmERW steel pipe: OD:1/8 inch to 24 inch, wall thickness:max 26.5mmLSAW steel pipe: OD:16 inch to 64 inch , wall thickness:max 65mmSpiral welded steel pipe: OD:219mm to 3120mm, wall thickness:3mm to 25mmSquare & rectangle steel pipe: OD:1/8 inch-36 inchAnnual production capacity is more than 60000 tons . Formed a collection development ,design , production and sales as one of the elite construction industry enterprised , we are striving to be a global comprehensive construction materials facilitator with frist-class competitiveness and influence, to make a secure , efficient, harmonious, grateful world with all constructors in this industryInquiry :ethan@united-steel.comWeb : www.united-steel.com