... Pipe Co., Ltd.Our Steel Pipe (Customized Products Provided)ItemRound Pipe (MM)welded Square Pipe (MM)Rectangular Pipe (MM)Oval Pipe (MM)LTZ Pipe ... , STPG410 etc..SurfaceSatiny and Smooth, Oiled or Not, black painted, black varnish, 3PE coating, FBE coating, Bare, varnished, ... cut square, grooved, threaded and coupling, etc.Applicationline pipe for use in pipeline transportation systems in the petroleum ...