Quarry Blast 18.6.15 filmed coptor...was chasing big rock...15m high..3m hole spacing 4m burden...1 row only chasing 10t to 20t rocks. It was perfect.
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Quarry Blast 18.6.15 filmed coptor...was chasing big rock...15m high..3m hole spacing 4m burden...1 row only chasing 10t to 20t rocks. It was perfect.
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