Outside Diameter: 219.1 mm – 2540mm (8? -100?) Wall Thickness: 6mm – 25.4 mm Length: 6-13m Steel Grade: Q235, Q235, Q345, A53, L245, L290, API 5L GR B, X42 ,X46, X70, S355, S275, S235 End: Plain, Beveled Surface Treatment: light-oiled, black painting , hot galvanizing, sand blasting, FBE, 2PE, 3PE etc Packing: in bulk due to big sizes TPI: Third Party Inspection can be arranged before shipment. ( like SGS, BV, MOODY, CCIC) Details of surface treatment: Single-Layer FBE Coating: SY/T 0315-2005, CAN/CSA Z245.20-2010, DEP 31.40.30.32-Gen-2011, ISO 21809-2-2007, API RP 5L9-2001 Double-Layer FBE Coating: Q/CNPC 38-2002, CAN/CSA Z245.20-2010 2LPE/2LPP Coating: SY/T 0413-2002, GB/T 23257-2009, ISO 21809-1-2009 3LPE/3LPP Coating: SY/T 0413-2002, GB/T 23257-2009, DIN 30670-1991, CAN/CSA Z245.21-2010, ISO 21809-1-2009, NF A49-711-1992, NF A49-710-1988 Insulation Coating: SY/T 0415-1996, CJ/T 114-2000, EN 253-1994