大口径直缝钢管生产线
Large-sized straight welded pipe production line
高压玻璃钢管生产线
High-pressure FRP pipe production line
无缝钢管生产线
the production line of steamless steel tube
seamless steel tube production line
钢管加工生产线
Steel tube finishing facility
钢管精整生产线
steel tube finishing line
钢管热浸镀锌生产线
Hot-dip galvanized steel tube operation line
光纤不锈钢管焊接生产线
stainless steel tube welding production line
H型钢生产线
automatic H shaped steel structure production line
X70高钢级大壁厚钢线钢管
high grade and thick wall X70 linepipe
X80级管线钢管
X80 grade pipeline steel pipe
grade X80 pipeline steel pipe
不锈钢生产线
stainless steel production line
超高强度管线钢管
ultra-high strength line pipe