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หินเจียรยาง - An Overview

pearlr370fmr1
· Has A better volume of toughness than WA (white alundum), and Using the WA standard of hardness, it's got excellent shape retention, so it has an extended dressing cycle, and generates very little heat during grinding. As compared to WA, it can be used in fields with a lot https://beediadiamond.com/catalog/rubber-points
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