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หินเจียรยาง - An Overview

kedarl037xek8
· Has A better level of toughness than WA (white alundum), and With all the WA amount of hardness, it's got fantastic shape retention, so it has an extended dressing cycle, and generates minor warmth in the course of grinding. As compared to WA, it can be used in fields https://beediadiamond.com/catalog/rubber-points
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