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A Review Of หินเจียรยาง

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· Has a higher standard of toughness than WA (white alundum), and With all the WA standard of hardness, it has excellent form retention, so it's a protracted dressing cycle, and generates small warmth all through grinding. As compared to WA, it can be used in fields with additional demanding https://beediadiamond.com/catalog/rubber-points

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