... B60005Transmission fluid tube 10#,20#,Q295,Q345,Q390300006Structural use of seamless steel tubes10#~45#,40Mn2,35Cr,35CrMo500007Hydraulic pillar tube, cylinder sleeve ... J55,N80,L80-1,C90,T95,P110,Q125,9Cr,13Cr2100003Line pipe B,X42~X80200004Transmission fluid tube 10,20,Q295,Q345350005high-pressure ... for high-pressure fertilizer equipment10,20,16Mn,15Mnv,12CrMo,15CrMo9000 carbon seamless steel pipe