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 ... pipe Production Carbon seamless steel pipe Brand Jingta Specification 10.29mm-508mm (1/8''-20'')× 1.2mm-39mm Standard GB, ASTM, API 5L, API ... 29mm-508mm. (1/8''-20'')1.2mm-39mm Technique Seamless, welded Usage 1. Low and middle pressure fluid ...