the main products : seamless and butt-welded steel elbow,reducing tee and equal tee ,all types of flange,caps,bend, concentric and eccentric reducer, concrete pump pipe.size : dn15-2000 , 1/2''-80''material:carbon steel , alloy steel and stainless steelstandard: jis ,din ,ansi/astm, gb,bs ,sms.asme/ansi b36.10-1996, asme/ansi b16.9-1993, asme/ansi b16.28-1994asme/ansi b 16.5, asme/ansi b 16.26-1994 ,jis b2311-1997 ,jis b2312din 2605-1991,din 2617-1991,din 2615-1992, din 2615-1992 pressure:sch 5s,sch10s,sch10,sch20,sch30,schstd ,sch40s, sch40,sch60,schxs,sch80s,sch80,sch100,sch120,sch140,sch160,schxxscolor:black color or others ,according to your requirement.packing : wooden cases , nylon bags,carton , wooden pallet,or in bulk.payment : by t/t or l/cothersspecial design available according to requirementall the production process are made under the iso9001:2000 strictly.