... 52, Q 235, Q 195, Q345, 27SiMnseamless steel pipe Production Carbon seamless steel pipe Brand Jingta Specification 10.29mm-508mm (1/8 ... Technique Seamless, welded Usage 1. Low and middle pressure fluid transportation pipeline 2. Casing Tube 3. Boiler Pipe 4. ... 20ASTM A179, ASTM A192 ASTM SA179,SA192, BS3059Seamless Steel Tubes for high pressure --Chemical fertilizer equipmentGB6479-8610, 20G, Q345, ...