Irabha yokuhlola umkhiqizo we-I.Iraba: 1) Irabha: irabha yemvelo, irabha ye-silicone, irabha ye-styrene butadiene, irabha ye-nitrile, irabha ye-ethylene propylene, irabha ye-polyurethane, irabha ye-butyl, irabha ye-fluorine, irabha ye-butadiene, irabha ye-neoprene, irabha ye-isoprene, irabha ye-polysulfide, i-chlorosulfonated i-polyethylene...
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