Shijiazhuang Jichi metal products co., Ltd. is a comprehensive enterprise with scientific research, produce in building materials& hard ware products. It is one of the leader in modernization new....
Hejian Huanyu Petroleum Machinery Co., Ltd., which specializes in producing tricone/ drill bits, including TCI Rock bit, Steel Tooth bit, Milled Tooth Bit, PDC bits, Drill rods, rill collars, ....
Daly Xingtai to Technology Co., Ltd. specializes in underground metal detectors, metal detectors, metal detector, sales and research and development, the company is mainly engaged in metal detector, ....