Ihe kacha mkpa mma bụ na-caster polyurethane elu ekwedo n'ime nso nke ekweghị ekwe, ma ụfọdụ ndị magburu onwe n'ibu ike, mmanụ na-eguzogide ma ozone eguzogide, ezi ala okpomọkụ Njirimara.

Polyurethane caster otu size ibu ike nke 6 na 7 ugboro roba taya nke nwere ike nweta ihe a na-aga n'ihu n'ichepụta usoro na akpaaka, n'ihi na mmepụta na-eji nnọọ obere n'efu, na ndị ọzọ ihe, ndị n'efu taya ozu akụkụ ike ike itighachi maka ndị ọzọ polyurethane ngwaahịa, ga-eme ka gburugburu ebe obibi mmetọ na ya n'ichepụta usoro dị mfe-- mmiri mmiri mgbatị ịkpụzi, nēfe wheel bụ ọhụrụ ụdị dịghị eriri, nke a maara dị ka narị afọ nke 21 green taya, polyurethane wiil, ga-eme n'ọdịnihu mmepe nke mainstream taya, taya ụlọ ọrụ nwere a sara mbara ngwa atụmanya.