洪基钢管---您值得信赖的无缝钢管专家！ 生产供应下列无缝钢管： 钢种：20#/20G/35#/45#/10/27SiMn/16Mn/20Mn/16MnDG/15CrMoG/12Cr1MoVG/1Cr5Mo/12Cr5Mo/12Cr2Mo/Q345B/Q345C/Q345D/Q345E/P5/P11/P12/P22/T22/T23/T1/T1a/T1b/T2/T91/T12/T11/T5/40Cr/Gr.B/X42/X46/X52/X56/X60/SA210A1/SA210C/ST35/ST45/ST52/ST44/ST37/ST35.8/ST45.8/13CrMo44/13CrMo4-5/15Mo3/16Mo3/10CrMo9-10/STB340/STB35/STB410/STB42/STB510/STBA25/STBA23/STBA22/STBA24/STBA12/35CrMo/42CrMo/E355/E235/E255/C35E/C45E/42CrMo4/P195GH/P235GH/P265GH/CFS320/HFS320/37Mn5/J55/K55/N80/41Cr4/STKM11A/STKM12A/STKM12B/STKM13A/STKM13B/STKM13C/TU37-C/TU42-C/Gr.1/Gr.6/Gr.3/09CrCuSb(ND)/09MnD/08Cr2AlMo等