Qvrui 1st Road, Zhengzhou High & New Technology Industris Development Zone
Henan Drills-King Mining Technology Co., Ltd., established in 2005, is a high-tech enterprise specialized the design, development and production of diamond tools, providing related technologies services for modernization mining drilling industries. ...
PDC Drill Bit,PDC Cutter Insert,Tungsten carbide button driil bit,Diamond core drill bit,Oil drill bit