Isu tinonyanya kubereka mafuta akanaka simbisa uye nekukwezva kupatsanurwa, sekurasikirwa kwemvura yekudzora, kudzoreredza, kuparadzira, kurwisa gasi kutama, deformer, spacer, kuputika kwemvura uye nezvimwewo.
Ehe, isu tinogona kupa mahara samples.
Ehe, tinogona kukuvapa iwe zvigadzirwa maererano nezvaunoda.
North America, Asia, Europe nedzimwe matunhu.