Yasungulwa nguMnu. Wurtz & Mr. Hofmann ngo-1849, eyathuthukiswa ngo-1957, i-Polyurethane yaba into esetshenziswa ezimbonini eziningi ezahlukene.Ukusuka endizeni emkhathini kuya embonini nasezolimo.Ngenxa yokugqama kokuthambile, okunemibala, ukunwebeka okuphezulu, ukumelana ne-hydrolyze, ukubanda nokushisayo...
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