... A,B60005Transmission fluid tube10#,20#,Q295,Q345,Q390300006Structural use of seamless steel tubes10#~45#,40Mn2,35Cr, ... 45#,27SiMn20008pipes for high-pressure fertilizer equipment20G,15MnV10009Shipping use of tube320,4101000Total 200000FQM continuous rolling unit(OD60 ... use of seamless steel tubes10,20,45,35CrMo,40Cr3500010Shipping use of tube320,360,410,4609000 Total 450000component oil line ...