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 industrial good results arrived only once the vulcanization method was invented by Charles Goodyear in 1839. Pure rubber is the one non-artificial rubber. It's Successfully Submitted (Awaiting Approval)
About หัวเจียรเหล็ก
Internet 8 days ago richardv593ovb4Web Directory Categories
Web Directory Search
New Site Listings