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HEBEI HOLLYLAND CO., LTD, established in 1984, is one of the leading manufacturer of DIAMOND DRILLING TOOLS in China, also a high-tech enterprise specialized in researching, manufacturing and marketing of 1) DIAMOND CORE DRILL BITS for concrete, asphalt, ceramics, bricks, refractory material, stones, construction and abrasive materials etc; 2) DIAMOND DRILL BITS and REAMING SHELLS, PDC BITS for geological prospecting, mining exploration, hydrogeological exploration and oil, gas exploration etc; 3) DTH HAMMERS AND BITS, THREADED BUTTON BITS applied to blast holes, earthwork projects, mineral exploration, wate  ( and more..)

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Diamond SegmentsOne-piece core bitsReaming Shells/Reamer shell/Reamers Three-part core bitsFitting AdaptersDiamond core bits for refractory materials and stones.Reamer shellQ series ReamersNQ Reaming ShellsAQ, BQ, NQ, HQ, PQ reamersDiamond impregnated reamers Three-part core bitsOne-piece core bitsDiamond SegmentsAdapters for changing to different thread Three-part core bits Three-part core bitsVarious AdaptersImpregnated diamond core bitsDiamond cutting wheelDiamond bitsImpregnated diamond core bitsCoupling adapterQ diamond bits T2 series diamond bitsAQ, BQ, NQ, HQ, PQ diamond bitsQ series diamond bitsQ series core bits PDC core drilling bitsImpregnated diamond core bitsPDC core bitDiamond Saw BladeOne-piece core bits PDC drilling bitsPDC core bitsOne-piece core bitsPDC bit for geological prospectingPDC drilling bitsPDC non-coring bitPDC concave 3 wing bitPDC cuttersPDC non-coring bitPDC drill bits