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A construction site in Yunfu, Guangdong province

Details:SANYOU   |  2021-01-20

Practice proved that the life of the drill bit with low hardness is not short. In a construction site in Yunfu City, Guangdong Province, the drilling life of two test products with low-hardness drill bit of Guilin Sanyou 0-5B exceeded 200 meters, and the drilling speed was not bad, which overturned the traditional understanding.

 

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(謝勇剛)