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Guizhou Vilong Equipment Co,.Ltd
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Guizhou Vilong Equipment Co,.Ltd is specialized in design, production and sales of all kinds of DTH and rotary drilling equipments from 2009.
drill rigs, drill rods, drill bits, dth hammer, button bits, tricone rock bits, drag bits, pdc bits, impregnated bits, casing tube, drill pipe, Odex, Symmetrix, steel casing, rock roller bits, three cone bits, roller cone bits.
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