The HF straight-seam weled pipe production line is designed to roll different sizes of steel strips continuously into tube blanks through roller and heat them up throught high–frequency induction or direct contract ,and then weld the tube blanks into straight-seam steel pipe.

The production line can be classified into four categories ,which are API standard high-grade oil casing pipe & oil / gas transmission pipe mill (brand new F.F pass craftswork ),straight-seam welded pipe production lines to produce pipes of small diameter but big wall thickness ,and plain liquid pipe making mill.The model is as following ,

 

HGΦ20；HGΦ32；HGΦ50；HGΦ76；HGΦ89；HGΦ114；HGΦ165；HGΦ219；HGΦ273；HGΦ325；HGΦ377；