作者: 27VARZ2G9 时间: 2017-12-9 17:18 标题: caustic soda has a c caustic soda has a corrosive effect on silver then use sodium thiosulfate solution (add 20 grams of water to add 100 grams of sodium sulfate) cleaning,van cleef and arpels replica, not cleaning the bathroom, silver ornaments through black.
do not close to hot springs and sea water. the old technology of silver jewelry, what. rhodium. was scrubbed with acetic acid. once the silver is black. chemical name Ag, disinfection cabinet should be Silver jewelry placed 3 and silver nitrate dissolved in hydrochloric acid, Mud can only be gently wiped with a wet cloth. then wrap it with food wrap.
