Casing Tube Outer Diameter 127mm MRE127 CIR110 Hammer Shank Concentric Casing Drilling System For Soft Rock Formation
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...MRE Concentric under reaming drilling system MRE Concentric under Casinging Drilling System is designed for unstable ground conditions. In the process of drilling, it could carry down the casing pipe to the hole to protect wall to achieve drilling work. At...
Wuhan Kingdrilling Diamond Co.,Ltd
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