YZ kawsu- fiil buñ defaree kable, muy xeetu fiil ak produit fiil, amna njariñ yii ci topp
(1) Flexibility: Laal bi nekk ci biti ci kawsu YZ-} ay fiil yuñ defaree ci kawsu, loolu moo leen di def ak flexibilite bu baax, yombal blund ak dem
Occasisioŋ yi ñuy faral di def ak yëngu-yëngu.
(2) Resistance sole: sheath bi ci kawsu mën na baña yàq ba noppi yokk dundu fiil bi, rawatina ci environmaa yi ñuy faral di def ak friction.
(3) Resistance corrosion: Materiaalu rubber amna bañ bu baax ci corrosion te mën na baña yàq asid yi, alkali yi, xorom yi ak yeneen substance chimik yu bari, loolu tax ñu mëna am environmaa chimik yu metti.
