02:48 00:15 pipe fitting factory flange production
00:43 90/60/45 deg LR elbow Steel Elbow/Bend pipe
00:15 steel pipe ,ERW Carbon steel pipe.seamless steel pipe
00:23 LSAW pipe,Longitudinally Submerged Arc Welding Pipe
00:08 SSAW Pipe,Spirally Submerged Arc Welding Pipe, Sprial Steel Pipe
00:09 Stainless steel decorative tube, rectangular tube, mirror surface treatment
00:11 Surface treatment of carbon steel pipe