Seamless Steel Pipe, Seamless Steel Tube, Seamless Steel Duct Seamless Steel Pipe/ Tube (SMLS) Product Name Seamless Steel Pipe/ Tube Brand Name Tianjin Tong Ying (JMS) Standard GB/T 17395-2008 ISO 4200:1991  ISO 5252:1991  ISO 1127:1992 Material 10#,15#,20#,25#,35#,45# 20Mn,25Mn Q235, Q275, Q295, Q345, Q390, Q420, Q460—(ABCD) Specification Outer Diameter 6-1016mm Thickness 0.25-120mm Length 3000-12500mm or as client's requirement Surface Treatment Galvanized, 3PE, painting, coating oil etc. Ends Plain ends, cutting, threading, beveled, flange, etc. Package In Bundle Plastic bag wrapped outside the pipe Pack into plywood case Plastic caps at ends Application Urban construction pipe, machine structure pipe, agriculture equipment pipe, water and gas pipe, Greenhouse pipe, Scaffolding pipe, Building material tube, Furniture tube, Low pressure fluid tube, Oil pipe, etc .