Cov Khoom Siv Crystal Dawb Uas Muaj Peev Xwm Siab,
,
Cov khoom siv Sodium Thiosulphate pentahydrate & anhydrous uas muaj purity siab CAS 10102-17-7, siv lead ua thiab hmoov rau duab thiab kev lag luam. Muab khoom ntau los ntawm lub Hoobkas nrog cov khoom zoo ruaj khov thiab cov pob khoom xa tawm.