Junziguan, Hejian City Cangzhou, Hebei
Our company is a manufacturer who produce and export drill bits. We have Export Department, which specialize in the of various products made by ourselves including Drill bits, Drill, Pipe, tricone PDF Diamond TCL bits so on. During twenty years, we built good ...
drill bit, tricone bit, PDC bit, drill collar, drill pipe, secondhand drilll bit