spiral welded steel pipe 1.O.D:219mm~3050mm ... L245,X42,X60,X70,etc 4.Certificate:ISO,SGS Product Spiral steel pipe StandardBS 1387, ASTM A106-2006, API 5L, ... ,12m,18m,or be required SurfaceWashing,pickling,varnish coating,Black surface finishing,galvanized,bevel ends,plain endsApplicationPublic waterworks,Petrochemical ... or be required Contact Tel86-22-26613977Fax86-22-26610650 spiral welded steel pipe