Model Number: sino007-#6672 Brand Name: sino sources Key Specifications/Special Features: Spiral steel pipe Product NameSpiral Steel Pipe Material GR.B,ST52, ST35, ST42, ST45,X42, X46, X52, X56, X60, X65, X70 Size Size8" to 142" Outside Diameter 219mm to 3620mm Standard API 5L,EN10217, EN10219, ANSI B36.10M-2004 ,BS EN10217 , DIN EN 10217-1-2005 Certificates API5L, ISO 9001:2008,SGS, BV, CCIC. Wall thickness 5-30mm. SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100 SCH120, SCH160, XS, XXS Surface Treatment Black paint, varnish, oil, galvanized, anti-corrosion coated (3PE, 3LPE). Pipe Ends Two ends of the Beveled Ends. Plastic caps (small OD), Iron protector (large OD), Pipe ends with steel support for thin wall