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Factory Supply carbide alloy coal mine anchor drill bits for coal mining Specifications 1. large bearing torque 2.rapid chiseling in speed 3.wide drilling 4.cutting scope 5.saving time and strength A, Coal rock drill is introduced, Product name specifications Model Coupling Dimension note Coal rck drill 28 Drill bit into dry and wet Coal rock drill 32 Coal rock drill 43 Coal rock drill 45 Coal ...

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coal mine core drill bit, coal mine core drill bit ... About product and suppliers: 1,276 coal mine core drill bit products are offered for sale by suppliers on Alibaba, of which mining machinery parts accounts for 33%, drill bit accounts for 27%, and cemented carbide accounts for 1%.

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66mm Coal Mining Equipment Non Core PDC Concave Drill Bit/Geological Mining Drill Bit with Manufacturer Price. US $ 1-2,140 / Piece FOB. MOQ: 1 Piece. Type : Core Drill. Since 2006. Contact Supplier. Wuxi Geotec Geological Equipment Co., Ltd. Manufacturer/Factory. Jiangsu, China Since 2006.

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