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We custom make dth bits that are suited to drilling for oil & gas, geo-thermal & waterwell, construction, horizontal directional drilling as well as mining. bit diameters range from 2” to 32”, in four different face shapes with an excellent selection of industry shanks.

It is a kind of self drilling anchor bolts. it is a new and high technological supporting product which combines drilling, grouting and anchoring together. the bolt length is flexible, it can be lengthened according to your demands.

Drill pipe drill rod bq nq hq pq 3m/1.5m, us $ 150150 / piece, energy & mining, china, crown.source from wuxi geotec geological equipment co., ltd. on alibaba.

Sep 12, 2019 · the craftsman cobalt drill bit set is an indexed drill bit set made from a combination of solid cobalt and steel. the bits have a durable structure that’s suitable for heavy-duty use and drilling...

Qualified supply DTH bits mining products of China supplier for international and neighborhood trade enterprise.Getting the ideal merchandise of our factory,our supply DTH bits mining solutions series happen to be tested and won us experienced authority certifications. For far more parameters and item list particulars,please click the button to acquire more information.

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