Iimbonakalo:
*Uqhagamshelo oluphakathi
*Iyakwazi ukufunxa ukothuka, ukubuyisela ukunxaxha kweradial, embolar kunye ne-axial
*Ukumelana ne-oyile esisiseko kunye nokugqunywa kombane
*Iimpawu zokujikeleza ngokwewotshi kunye newotshi ziyafana ncam
*Enye ineelastomer zobunzima ezintathu ezahlukeneyo
*Indlela enye yokulungisa izikrufu