89*11无缝钢管,ASTM A333Grade9低温管
¥2300.00
159*14无缝钢管,ASTM A333Grade10低温管
¥2300.00
21*4无缝钢管,ASTM A333Grade11低温管
¥2300.00
45*5无缝钢管,20G高压锅炉管
¥2300.00
89*12无缝钢管,ASTM SA106B/C高压锅炉管
¥2300.00
159*16无缝钢管,ASTM SA210A/C高压锅炉管
¥2300.00