Umyalelo womkhiqizo:Itheyiphu yokuvala irabha ye-butyl yenziwe ngerabha ye-butyl kanye ne-polyisobutylene nezinye izinto, ezihlanganiswe nezinto zeshidi le-polymer, elinomsebenzi wokunamathisela okunamathiselayo okunamathelayo okunwebekayo ohlangothini olulodwa noma ohlangothini olukabili oluhlanganisa i-solvent-free Isici somkhiqizo: 1.High amandla.Phezulu...
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