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หัวเจียรยาง for Dummies

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Substantial quantities of acrylonitrile bring about a rubber with much better oil resistance. Compounds with reduced acrylonitrile content material have an improved small temperature flexibility and resilience. This provides CR rather fantastic weathering and warmth resistance, specifically for a polymer which is made up of double bonds in its chains. https://beediadiamond.com/catalog/rubber-points

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