The English Chemist Joseph Priestley gave it the title rubber in 1770 when he found it may be used to rub out pencil marks. Its key industrial results came only after the vulcanization system was invented by Charles Goodyear in 1839. Greatly cuts down some time it's going to take Successfully Submitted (Awaiting Approval)
หัวเจียรหุ้มยาง Fundamentals Explained
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