Steel Pipe 1.CE, ISO 2.a leading one in China 3.about 20 years manufacture history 4.Export to more than 30 country Square, Rectangular3) Polish: 80#,180#,240#,320#,400#,500#,600#4) Packing: plastic bags, Cartons, Wooden cases, or according to customer's requests High quality,competitive price and fast deliveryThis is JACKY LIU from SUMWIN Stainless Steel Co. Ltd. which integrates R&D, ...