1. Kunezizathu ezimbalwa zokuthi kungani abantu bakhetha ulwelwesi lwe-EPDM.Okokuqala, ulwelwesi lwe-EPDM lunesimo sezulu esihle kakhulu nokumelana nokuguga, okuzivumela ukuthi zimelane namazinga okushisa aphakeme, ukuchayeka kwe-UV, nokungcola ngaphandle kokuwohloka.Okwesibili, ulwelwesi lwe-EPDM lunem...
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