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หัวเจียรไม้ No Further A Mystery

davidc825vdj7
· Has The next amount of toughness than WA (white alundum), and Using the WA amount of hardness, it's got excellent shape retention, so it's got a long dressing cycle, and generates small heat in the course of grinding. When compared to WA, it can be employed in fields with https://beediadiamond.com/catalog/rubber-points
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