Fasahar da ke yawo mai amfani da fasahar iska hanya ce ta samar da ci gaban yanayin zafi ta madadin polyethylene, polyurthylene, polyurthylene, polyurthylene, polyurthaylene, polyurethylene, polyurethylene, polyurethylene, polyurethylene, polyurthaylene, polyurthanes, da sauransu) a kusa da bututu ko kayan aiki.