... payment,70% balance. Production Carbon seamless steel pipe Specification 10.29mm-508mm (1/8''-20'')× 1.2mm-39mm ... (1/8''-20'') Wall Thickness 1.2mm-39mm Grade 10#,20#,45#,16Mn,27SiMn,12Cr1MoV,Q235, ST42,ST52,A106 ... on Length 6-12m. As customers requestments. Model Number 10.29mm-508mm. (1/8''-20'')1.2mm-39mm ... 5L GR.B SSAW steel pipe line pipe ,2.Size: from 219" to 2420", 3.Wall Thickness: from 6mm to 25 ...