河北无缝钢管制造有限公司专业生产无缝钢管穿孔无缝管直径6-219mm热扩无缝钢管直径219-762mm壁厚：2-50mm石油套管空心抽油杆流体管和结构管主要材质：10/20/20G/35/45/16Mn/ST37/SA210A1/SA210C/ST35.8/ST45.8/ST35/ST45/ST44.2/STB340/STB35/STB410/STB42/STB510/STB52/STBG370/STBG38/STBG410/STBG42/13CrMo44/15Mo3/10CrMo910/L245/L290/L320/L360/Gr.B/Gr.1/Gr.6/X42/X46/X52/35CrMo/42CrMo/T2/T5/STBA25/T11/STBA23/T12/STBA22/T22/STBA24/P5/P11/P12/P22/20Cr/40Cr/15CrMoG/12CrMo/12Cr2Mo/ST52/Q345B/Q345C/Q345D/Q345E/E355/E235/E215/16MnDG/12Cr1MoVG/37Mn5/25Mn2/36Mn2V/42MnMo7/J55/K55/N80/P195TR1/P195TR2/P235TR1/P235TR2/P265TR1/P265TR2CFS320/HFS320BS3059EN10297-1/EN10305-1/EN10216DIN1629/17175/2391/2448JISG3461/3462/3454ISO3183-2007并兼营：各种型号的螺旋管直缝管等以及各种型号不锈钢焊管，弯头三通大小头法兰盲板波纹补偿器金属软管焊接支管台承插管件等价格优惠 期待与您合作