Spiral Welded Pipe 1) Material:Q235,Q345 2) Wall thickness:4mm--18mm 3) Out diameter:219--3220mm 4)ISO9001:2000 API Spiral Welded Pipe StandardBS, JIS, GB, DIN, ASTM, APIStandardBS 1387, JIS G3463-2006, JIS G3459-2004, JIS G3461-2005, GB 3087-1999,...Grade10#-45#, 16Mn, A53-A369, Q195-Q345Grade20#, 16Mn, A53(A,B), A106(B,C), A312, Q235Thickness2 - 65 mmSection ShapeRoundOuter Diameter0.5 - 48 ...