42CrMo4 alloy steel pipe has high strength and hardenability, good toughness, small deformation during quenching, high creep strength and endurance strength at

Spiral steel pipe is a kind of steel widely used in construction and other industries. It is a spiral seam steel pipe, which is made of rolled steel strip as ra

Spiral welded pipe, the pipe whose weld is spirally distributed relative to the axis of the pipe body. It is mainly used for conveying pipes, pipe piles and som

Seamless steel pipe and welded pipe are divided according to different production processes. Seamless steel pipes include hot rolling, cold rolling, cold drawin