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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 bits Three-part core bitsReaming Shells/Reamer shell/ReamersDiamond impregnated reamers Three-part core bitsQ series ReamersNQ Reaming ShellsAQ, BQ, NQ, HQ, PQ reamersFitting AdaptersReamer shellDiamond core bits for refractory materials and stones. Three-part core bits Three-part core bitsDiamond SegmentsDiamond SegmentsVarious AdaptersOne-piece core bitsAdapters for changing to different thread T2 series diamond bitsdiamond bitsCoupling adapterDiamond cutting wheelAQ, BQ, NQ, HQ, PQ diamond bits PDC core drilling bitsImpregnated diamond core bitsOne-piece core bitsDiamond Saw BladeDiamond core bits for refractory materials and stones.PDC core bitOne-piece core bits PDC drilling bitsDiamond Saw BladeOne-piece core bitsPDC core bitsPDC drilling bitsPDC non-coring bitPDC concave 3 wing bitPDC cuttersPDC non-coring bitPDC drill bits