Akụkụ nhazi nke ngwaahịa waya na eriri, n'ozuzu, nwere ike kewaa n'ime akụkụ anọ bụ isi: waya, mkpuchi, mkpuchi na mkpuchi.
Enwere ike iji ihe mkpuchi rọba mee ihe maka mkpuchi na ịkwa akwa.
Nkwanye: EPDM compound, CR compound
EPDM: S505A;S512F;3062E;J-3060P;TER 4033;TER 4044
CR: SN121;SN122;SN123;CR111;CR112;SN231;SN232;SN133;SN232;SN123