... steel pipe Q235 standard:API,ASTM,ASME,ANSI,JIS,DIN,BS,GB,ISO material:API 5L, A53,A106,A333 GR6,Q235,Q345 spiral steel ... pipe Q235 SSAW (Spiral Submerged-arc Welded) Quality standard: API ... 1626, DIN 2460,TS1997, UNI 6363, AWWA C-200 Steel Grade:Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F ...