... , Q 235, Q 195, Q345, 27SiMn seamless steel pipe Production Carbon seamless steel pipe Brand Xin Hai Feng Specification 10.29mm-1016mm ... ASTN A519-98 JIS G3441-1994 JIS G3444-1994Seamless steel tubes and pipes forliquid serviceGB/T8163-199910, 20, Q295, ... 199910, 20ASTM A179, ASTM A192 ASTM SA179,SA192, BS3059Seamless Steel Tubes for high pressure --Chemical fertilizer equipmentGB6479-8610, 20G, Q345, ...