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หินเจียรราบ surface grinding wheel https://pastebin.pl/view/3709e5f9 https://chiefpickle09.werite.net/post/2021/06/11/%E0%B8%AB%E0%B8%B4%E0%B8%99%E0%B9%80%E0%B8%88%E0%B8%B5%E0%B8%A2%E0%B8%A3%E0%B8%A3%E0%B8%B2%E0%B8%9A-surface-grinding-wheel-%E0%B8%AB%E0%B8%B4%E0%B8%99%E0%B8%A5%E0%B8%B1%E0%B8%9A%E0%B8%A1%E0%B8%B5%E0%B8%94%E0%B8%84%E0%B8%99%E0%B8%9B%E0%B9%88%E0%B8%B2-carborundum-%E0%B9%81%E0%B8%9C%E0%B9%88%E0%B8%99%E0%B8%95%E0%B8%B1%E0%B8%94%E0%B9%80%E0%B8%AB%E0%B8%A5%E0%B9%87%E0%B8%81-%E0%B8%84%E0%B8%B8%E0%B8%93%E0%B8%A0%E0%B8%B2%E0%B8%9E%E0%B8%94%E0%B8%B5%E0%B8%88%E0%B8%B2%E0%B8%81%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B9%80%E0%B8%97%E0%B8%A8%E0%B8%9A%E0%B8%A3%E0%B8%B2%E0%B8%8B%E0%B8%B4%E0%B8%A5-%E0%B8%8A%E0%B9%88%E0%B8%A7%E0%B8%A2%E0%B9%83%E0%B8%AB%E0%B9%89%E0%B9%83%E0%B8%9A%E0%B8%A1%E0%B8%B5%E0%B8%94%E0%B8%84%E0%B8%A1%E0%B8%A2%E0%B8%B4%E0%B9%88%E0%B8%87%E0%B8%82%E0%B8%B6%E0%B9%89%E0%B8%99-%E0%B9%80%E0%B8%97%E0%B8%84%E0%B8%99%E0%B8%B4%E0%B8%8