Xian Conval Antibiotic Technology Co., Ltd hasbeen in the field of silver ion for 24years. We are thelargest industry base of active silver ion inAsia.Conval tookthe lead in launching the world-class product series of activesilver ion of high valence state (Ag++) by patent technology. Theseries of silver ion has been applied in different fields includingmedical treatment, public environment, home hygiene, personal careand pet health etc. Â