... natural sawn cut bushhammered honed tile slabs is a , which is deposited on the riverbed by water erosion by th...
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...the sample is 7~10CM, height is the same as diameter ) (magmatic such as granite, diorite, basalt; such as calcareous ferrugi...
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... through uniform formations like shale, , dolomite, limestone, and more. These drill bits employ a shearing, scraping, or...
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...drilling into homogeneous formations such as shale, , dolomite, limestone etc. These drill bits use the shearing scraping...
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