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หัวเจียรยาง for Dummies

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Superior quantities of acrylonitrile end in a rubber with far better oil resistance. Compounds with lower acrylonitrile articles have an improved minimal temperature versatility and resilience. · Because it is crystallized with GC and polycrystalline porous abrasive grains, it offers high machinability when maintaining the elasticity of an ordinary grindstone https://beediadiamond.com/catalog/rubber-points

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