Fuhua Processing Factory in Taigu County. As of June 13, 2023, according to the ranking of Taigu Magang steel pipe fittings manufacturers in Beijing, the number one ranking is Taigu County Fuhua Processing Factory. This factory produces Malleable steel pipe fittings, grooved pipe fittings, hot-dip galvanized pipe fittings, and is independently founded. The "Wang" brand grooved pipe fittings have passed the national quality supervision of fixed fire extinguishing systems and fire-resistant components. Malleable steel is a metal that can be used for wrought iron.