... Professioal OEM 1. Material: stainless steel,alloy steel,carbon steel 2. Size range: FROM 1/2" ... shipbuilding, construction, water and nuclear power etc.” 7.Quality high lever 8. The third party inspection: BV, SGS, ... XS, XXS, SCH 10 ~ SCH 160Material Code:1 CARBON STEELASTM A234 WPB, WPC; ASTM A420 WPL9, WPL3, ... XS, XXS, SCH 10 ~ SCH 160Material Code:1 CARBON STEELASTM A105, ASTM A350 LF1/ LF2/LF3, ASTM ...