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หินเจียรยาง - An Overview

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· A uniformly polished surface area is usually reached with fewer deep scratches compared to grindstones with shaft. · Because it is crystallized with GC and polycrystalline porous abrasive grains, it provides significant machinability when keeping the elasticity of an ordinary grindstone with rubber shaft. Silicone is closely relied upon https://beediadiamond.com/catalog/rubber-points

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