Haihao pipe fittings factory is a leading manufacturer of A234 WPB carbon steel pipe fittings.What is A234 WPB pipe fittings? It means the pipe fittings which material is A234 WPB standard specif ...
Hebei Haihao High Pressure Flange Pipe Fitting Group Co was established in 1982,
located in Mengcun County—the hometown of pipe fittings in China. We are the first and one
of the biggest companies which can produce pipe fittings,flanges and steel pipes.
Our Group owns subsidiaries, there are more than 600 employers, including 85 technologists.