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Pneumatic crawler drill mining dth hammer bit factory for gold mining equipment. company introduction : xiamen zhao xing electrical equipment co., ltd. was established in 1996, with extensive experience in drilling area.

Dth bits are mainly used for quarrying, ore mining, coal mining, soft, medium hard, and hard rock, blast hole drilling and water well drilling project, marble quarry or …

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The optimum range of hole size for dth drilling is 90 mm (3.5”) to 254 mm (10”). smaller holes are generally drilled using tophammer drill rigs, and larger holes generally use rotary drill rigs. as a rule of thumb, the smallest hole diameter a dth hammer can drill is its nominal size. i.e. standard 102 mm (4”) hammer will drill a hole down to a minimum diameter of 102 mm (4”).

We are an enterprise that export export 4 flute drill bit to China, we are approved by the relevant state registratio. Primary export 4 flute drill bit and sell to different regions in China, product out there upon request. We've got the spirit of "customer initial, honesty first" principle, using a quantity of enterprises established long-term cooperative connection.


export 4 flute drill bit manufacturer with years's encounter, from China.We mainly supply export 4 flute drill bit with high quality and competitive cost.we have an expert export 4 flute drill bit solution designers.Our product is by way of the national professional certification.

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