Who can make the first breakthrough in domestic man-made diamond field?

Details:SANYOU   |  2021-01-17

At the end of 2013, a good news from Goldstone Mining Co., Ltd again,

The average drilling life over 200m and highest single life reach 400m of each bit when they drilling 8-9 grade limestone stratum with our S75 rope drilling bit. Meanwhile, the average drilling life is over 90m and drilling efficiency reach 10-15m each 12 hours with S75 core bit, the highest life of the bit can reach 160m, get unanimous praise from the customers.
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