Atọpa awọ, ti a tun mọ ni olutọpa kikun, olutọpa kikun tabi yiyọ kikun, jẹ omi ti o dapọ pẹlu awọn nkanmimu bii chlorinated hydrocarbons, ketones, esters, alcohols, and benzene series. Lilo agbara epo lati wọ inu ati ki o wú ibora, o le yọkuro surfa daradara.
Ka siwaju