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Having a knowledgeable and available world-class partner on site or online, makes the difference between doing it alone and tapping the experience and know-how. the customer can count on our service and support, supplied by the largest, most dedicated manufacturer of dth drilling tools in the world. we know down hole drilling!

28 rows · dth drill rods (also called as drill tubes or drill pipes) are the mechanism to transmit impact force and rotation torque to dth hammer and dth bit, as well as offer pass for the air flow. guizhou vilong supplies a full size of friction welded dth drill rods from 76mm to 140mm with different wall thickness.

Supanchor r32 anchor bar coupling for rock anchoring. features . supanchor® self drilling anchor system is a bolting solution for difficult ground and rock conditions. the system enables drilling and grouting in one operation, making much saving in jobsite and project time. applications . tunnelling ground engineering. 1.

R38 anchor bolt. t30 anchor bolt. hot-dip galvanizing anchor bolt ... a critical part of this infrastructure upgrade project was the construction of a 1,471 m long tunnel as part of the bypass of the town of omis, some 25 km south of split. ... necessary functional adjustments of the required anchor lengths can be carried out easily using the ...

used drill bits trader manufacturer with years's encounter, from China.We mostly supply used drill bits trader with good quality and competitive price tag.we've an expert used drill bits trader item designers.Our product is by means of the national qualified certification.


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