1. hot firm structure tube(10#-20#):Specification 57-180 MMs 2. petroleum tube:Petroleum pipeline, the petroleum a tube, a tube light tube, the petroleum connects the hoop tube 3. hot appropriation tube of :The general appropriation tube GB/ pressure cooker T8162-1999 stove takes care of the GB5310-1995 The geology takes care of the Q/ ASB98-2002, low win to press the boiler tube GB3087-1999 Low win to press the boiler tube GB3087-1999, the automobile half stalk tube YB/ T5035-1996 The appropriation did not sew the tube( D60,30 CrMnSiAs,20-50 Mn2s,40-50 Bs,20-30 CrMnSis, PcrNiMoA,30 CrMnSiNi2As,20-40 CrNiMos,10-20#,35-45#,30 CrMnSiAs,30 CrMnSiNi2As,38 CrAs,12 CrNi3As) The ship take care of 410, the high pressure turn fatty take care of the 20 Gs, the tool uses to take care of the Cr5Mo, the petroleum turns to take care of 20#, the fluid tube(10-20#, Q345A,30-35 CrMos) spirit bottle uses the tube(30 CrMos,35 CrMos)