... price 5.Samples ,OEM a Product program and production range1,Accu-roll unit(OD114—273mm. WALL ... ,X42~X60(L245~L415)50003high-pressure boiler tube20G50004lower/medium-pressure boiler tube10#,20#,A,B60005Transmission fluid tube10 ... #,20#,Q295,Q345,Q390300006Structural use of seamless steel tubes10#~45#,40Mn2,35Cr,35CrMo500007Hydraulic pillar tube ...