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หัวเจียรหุ้มยาง Fundamentals Explained

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· The individual abrasive balls around the specially coated grindstone match the workpiece surface. Their spherical condition isn't going to problems workpieces and allows large-duty get the job done. Natural rubber is the sole non-artificial rubber. It's really a pure source received from latex found in the sap of Hevea https://beediadiamond.com/catalog/rubber-points

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