The English Chemist Joseph Priestley gave it the name rubber in 1770 when he uncovered it could be utilized to rub out pencil marks. Its important business good results arrived only after the vulcanization procedure was invented by Charles Goodyear in 1839. This offers CR reasonably superior weathering and warmth Successfully Submitted (Awaiting Approval)
หัวเจียรหุ้มยาง Fundamentals Explained
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