HEBEI BONA ENTERPRISE is one of the leading enterprises in China ,Which specialized in producing and exporting various pipes and pipe fittings, In this line for more than 20 years.? Grown from a malleable iron pipe fittings factory, by our unremitting effort and valuable reputation we are now strong to more business field. Our main products include: Malleable Iron Pipe Fitting, Carbon Steel Pipe Nipples & Sockets(Coupling),Steel pipes(seamless & welded),Flanges, Butt Welding Pipe fitting