RANGFANG UQIER DRlLL BIT CO., LTD. somugadziri wemita-tricone bits nePDC bits, Zvinhu zvedu zvinoitwa zvichitevedzera zvinotaurwa neaAPI uye ISO9001 LANGFANG UQIER DRlLL BIT CO., LTD. yakatangwa muna 1990. Takachengeta vatengi vedu pamberi pepurogiramu uye mubhajeti kupfurikidza nokugovera zvishandiso zvakanaka zvikurusa pamitengo yakanakisisa inobvira. Zvinhu zvedu zvinotengeswa munyika inopfuura 30 uye zvinobatira oiri negasi, uye zvimwe zvinhu zvine simba. Kuvaka, Kudzimba, Kubudisa Ruzha (HDD), Geothermal and Environmental. Vashandi vedu vane ruzivo rwokuzviwanira pano kuti vakudzivei chinhu chiri chose kubva pakusarudza chimwe chinhu chakarurama kusvikira kukutumira kupoteredza nyika yose. Vavariro yedu ndeyokugovera vatengi vedu midziyo yakanakisisa yakanakisisa, zvibvumikisa nebasa mubasa. Tinotsigirwa namakore akawanda okuzviwanira, vanyanzvi vakarovedzwa uye chitoro chakazara. Dzivisa ndyiko. Kukurumidza kudhora, Gumira kuchengeteka ndicho chinangwa chedu nguva dzose.