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หินเจียรยาง - An Overview

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· The individual abrasive balls within the specially coated grindstone match the workpiece surface. Their spherical condition isn't going to hurt workpieces and permits weighty-obligation get the job done. This gives CR fairly good weathering and heat resistance, specifically for a polymer which has double bonds in its chains. The https://beediadiamond.com/catalog/rubber-points

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