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New Step By Step Map For หัวเจียรยาง

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The English Chemist Joseph Priestley gave it the name rubber in 1770 when he discovered it may be utilized to rub out pencil marks. Its key commercial success arrived only after the vulcanization system was invented by Charles Goodyear in 1839. Styrene Butadiene Rubber is among the most made use Successfully Submitted (Awaiting Approval)
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