Itu 925 cincin perak will change color.
Silver is an active metal that reacts easily with sulfur in the air to blacken the silver. Karena itu, wear as little as possible in contact with air, and should not be worn in places where chemical gas is concentrated. After exposure to sulphur soap,925 cincin perak must be dried immediately. Chloride in sweat also has an effect on silver.
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