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Beat the 6400 meter underground high temperature diamond stone bit through the Cretaceous period.
2018-08-27 11:32
Beat the 6400 meter underground high temperature diamond stone drill through the Cretaceous period!
On October 24, 2017, Professor Zhu Yongyi, deputy director of Songke Well 2, sent congratulatory telegrams to Tian and Jinshi colleagues: "On behalf of Songke Well 2, thank you for your enthusiasm and efforts in participating in and supporting the project. Your products have played an important role in the smooth progress of the project." As of October 31, 2017, "Songke No. 2 Well" hole depth of 6400 meters, diamond S series diamond bit KT140, a great show of skill!
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