Process of spiral steel pipe

　　Leveling Milling: The flat steel anvil machine so that the origal curl,and then thouth the edge milling machine for two-sided steel milling,so as to meet the requirements of the plate width,plate edge parallelism and groove shape

　　Shear molding:The steel plate production line along the outer edge of the spiral curl into a pipe.

　　Butt cut:Double-sided submerged arc welding using advanced technology to pre-welding,internal welding,outside wilding.The spiral steel pipe using a plasma-foot cut to specification length.

　　We can customize various sizes of API 5L X70 Psl2 Spiral Steel Pipe according to customer's needs.

　　Our factory always supplies all kinds of spiral steel pipes abroad, and is supported by our customers. We will try our best to do better.Welcome to contact us