seamless steel pipe 1.10#,20#,45#,16Mn, 2ASTM A106 Gr ... , Q 235, Q 195, Q345, 27SiMn 30 inch seamless steel pipe 10#,20#,45#,16Mn, ASTM A106 Gr.B, ASTM A53 ... St 52, Q 235, Q 195, Q345, 27SiMnseamless steel pipe Production Carbon seamless steel pipe Brand Jingta Specification 10.29mm-508mm (1/8''-20'')Ă— ... 29mm-508mm. (1/8''-20'')1.2mm-39mm Technique Seamless, welded Usage 1. Low and middle pressure fluid ...