... 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, cylinder sleeve etc.45#,27SiMn20008pipes for high-pressure ... T95,P110,Q125,9Cr,13Cr2100003Line pipeB,X42~X80200004Transmission fluid tube10,20,Q295,Q345350005high-pressure boiler tube20G, ...