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الشخص الذي يمكن الاتصال به Mr. Jeason
Suite 1206,Shuntian International Fortune Centre,NO.80 Erduan Furong Rd(M), Changsha, Hunan
PDC is composed of polycrystalline diamond by cemented carbide ***** is a kind of super-abrasive product sintered under super-high pressure and at high temperature.With excellcent wear-ability and impact toughness, this very hard product mainly used for making roller cone bit for petroleum drilling and tools for coalmine drilling and geoligical drilling.
