1. Introduction to KQZ S eries Air -electric D own-the-hole D rill ing Rig The KQZ series a ir -electric down-the-hole drill ing rig is a highly efficient rock drilling equipment. It uses compressed air to drive the impactor to generate high-frequency impact force on the...
We are offering drill rigs, crawler type cbm rigs, mining rigs. Landrill provide you rigs and drilling tools for coalbed methane exploration and drilling....
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