welded steel pipe

The welded steel pipe, steel plate or strip is, because of its welding process different and divided into furnace welded pipe, welded (erw) pipe and automatic arc welding tubeWelded pipe. Because of its high welding form of different divided into straight seam welded pipe and spiral welded pipe two. Because of the shape and JiDuan divided into circular welded pipe and alien (square, flat, etc) welded pipe.http://www.steeltube-china.comhttp://www.dagangpipe.com