A234 WPB 90 LR 812.8*11mm Elbow Welded with Straight Ends /Long Tangent on one end Prefabricated Units Butt Weld

Pipe prefabrication refers to a construction process of centralized blanking, assembly, welding and testing of some pipe sections with definite or adjustable dimensions in the single line diagram in the specified area in the early stage.

Because  the prefabrication yard is better than the construction site, prefabrication yard can be divided into processes: blanking section, assembly section and welding section. Large Prefabrication Yard can also be divided into manual priming section, automatic welding capping section and finished product section, which can greatly improve the construction efficiency and qualification rate.