hejian, Cangzhou, Hebei, China,
Our company which was set up in 2008is located the IndustryParkof Hejian County, Hebei Province, a famous Drill Bit home inChina. Our covers an area of 300 square meters, withspacious workshops and offices. main products include highquality PDC, Synthetic ...
tricone rock bits, pdc drill bits, diamond drill bitsï,¼,?roller cone drill bits, pdc bits scrap, used tricone bits, milled tooth bits, tungsten carbide insert bits, rock drill bits