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Hargrand Drilling Tool Co., Ltd

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leading supplier of impregnated diamond core bits
Specification: NQ BQ PQ HQ AQ SQ
Detail: Impregnated Diamond core bits Description: The impregnated diamond drill bits are the most commonly useful bits in the mineral exploration industry, as they have the widest range of application. The high grades of synthetic d...


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Hargrand Drilling Tool Co., Ltd All Products >> drilling tools

Hargrand Drilling Tool Co., Ltd

All Products >> drilling tools