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5 Tips About หัวเจียรลม You Can Use Today

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· Has A higher amount of toughness than WA (white alundum), and While using the WA degree of hardness, it's got superb shape retention, so it has a long dressing cycle, and generates small heat all through grinding. In comparison to WA, it can be used in fields with a https://beediadiamond.com/catalog/rubber-points
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