Zhengzhou Diamond Superhard Tools Co.Ltd
drill bits, pdc bits, pdc drill bits, anchor shank, die blank, Manufacturer and Supplier - China
PDC cutters heavy density designed to drill soft to medium-hard stratum(f?10). Jet nozzles designed for directly flushing the fronts of fhe cutters,and with high drilling speed and super long life. - Update: 2013-04-01
PDC cutters heavy density designed to drill soft to medium-hard stratum(f?10). Jet nozzles designed for directly flushing the fronts of fhe cutters,and with high drilling speed and super long life. - Update: 2013-03-19