Ikimenyetso cyo gufunga umuryango gikoreshwa cyane cyane mugukosora urugi rwimodoka, kutagira umukungugu no gufunga cyane cyane birwanya elastique nziza na compression deformation, kurwanya gusaza, ozone, reberi ya EPDM hamwe nibikorwa byinshi bya chimique (-40_ + 120 ℃) ( EPDM) reberi ifuro hamwe nibintu byinshi
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