Nov 29, 2010 18:32
13 yrs ago
English term
development-end
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Mining & Minerals / Gems
U/G Mining
120 X/Cut 2
Blast a 3.7*3.7 Development-end
Sequence:
Face prep, 2. Temp support, 3. Drill, 4. Charge up,, 5. Blast
120 X/Cut 2
Blast a 3.7*3.7 Development-end
Sequence:
Face prep, 2. Temp support, 3. Drill, 4. Charge up,, 5. Blast