The plaster ọnya (band enyemaka) mere site ọkachamara igwe na team.PE, PVC, ákwà ihe nwere ike hụ na ngwaahịa lightness na nro.Ịdị nro dị elu na-eme plasta ọnya (band enyemaka) zuru oke maka mgbakwasa ọnya ahụ.Dị ka ndị ahịa'requirements, anyị nwere ike na-emepụta dị iche iche iche iche nke ọnya plasta (band enyemaka) .