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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 bitsReamer shell Three-part core bitsReaming Shells/Reamer shell/ReamersAQ, BQ, NQ, HQ, PQ reamersFitting AdaptersQ series ReamersNQ Reaming ShellsDiamond Segments Three-part core bitsOne-piece core bitsDiamond cutting wheel T2 series diamond bitsDiamond Segmentsdiamond bitsAdapters for changing to different threadVarious AdaptersDiamond SegmentsImpregnated diamond core bitsImpregnated diamond core bitsCoupling adapterDiamond core bits for refractory materials and stones.Q diamond bitsQ series diamond bitsDiamond bitsAQ, BQ, NQ, HQ, PQ diamond bitsQ series diamond bitsPDC core bitsOne-piece core bitsPDC core bit PDC drilling bitsPDC bit for geological prospectingPDC non-coring bitPDC concave 3 wing bitPDC cuttersPDC drill bits