Koresha SS kumapine no guhuza hanze, hamwe na plastiki yubuhanga idasanzwe (matte yera, POM cyangwa PA6) kumurongo wimbere, kugirango irwanye ruswa kuruta urukurikirane rusanzwe.Ariko rero, mugire inama muguhitamo ko umutwaro ntarengwa wemewe ari 60% byurwego rusanzwe.