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A Simple Key For หัวเจียรยาง Unveiled

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The English Chemist Joseph Priestley gave it the title rubber in 1770 when he discovered it may be utilized to rub out pencil marks. Its big industrial good results came only once the vulcanization method was invented by Charles Goodyear in 1839. Natural rubber is the only non-artificial rubber. It's Successfully Submitted (Awaiting Approval)
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