Explosive-free rock breaking method, explosive-free rock breaking, digging and laying method and explosive-free rock breaking equipment
The invention provides an explosive-free rock breaking method, an explosive-free rock breaking, digging and laying method and explosive-free rock breaking equipment used in the explosive-free rock breaking method. The explosive-free rock breaking method comprises the following steps: step one, formi...
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Format: | Patent |
Sprache: | chi ; eng |
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