Machine that boring thousands of feet in hard rock in a few hours / Boring complete process
5.4 هزار بار بازدید -
4 روز پیش
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Machine that boring thousands of
Machine that boring thousands of feet in hard rock in a few hours / New technique
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Boring was done with a compressor machine, in which 70 feet of water came and 300 feet of boring was done. There was a lot of water on which the motor was running 24 times
4 روز پیش
در تاریخ 1403/06/24 منتشر شده
است.
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