Akpụkpọ ụkwụ rọba bụ akpụkpọ ụkwụ e ji rọba mee, a pụkwara ikewa ihe ndị e ji eme rọba mee rọba eke ma ọ bụ rọba sịntetik. The uru nke eke roba bụ na ọ dị nnọọ nro, magburu onwe elasticity, nwere ike imeghari ka a dịgasị iche iche nke egwuregwu, na-egwu a ujo-absorbing ọrụ, ma mwepu bụkwa nnọọ doro anya na bụ mmanụ iguzogide, ozone ịka nká na thermal oxygen ịka nká bụ ogbenye. Akpụkpọ ụkwụ egwuregwu ime ụlọ na-ejikarị rọba eke.

kwadoro:

EPDM:S537-3;S537-2;J-2070;J-2080;TER 6235;TER 4548;