Corrosion-resistant, no blackening Tested, in five percent concentration of hydrochloric acid, more than 95 hours to react (ordinary copper-free silver mirror less than 30 hours to react) antioxidant performance than the traditional copper-free silver…
Corrosion-resistant, no blackening Tested, in five percent concentration of hydrochloric acid, more than 95 hours to react (ordinary copper-free silver mirror less than 30 hours to react) antioxidant performance than the traditional copper-free silver…