Yorliq arxivi: Removing and Preventing Tarnish on 925 Kumush zargarlik buyumlari

Removing and Preventing Tarnish on 925 Kumush zargarlik buyumlari, Shaxsiylashtirilgan shaxsiy dizayn

  Sterling silver jewelry is bound to tarnish over time if it is exposed to air. Sterling silver is composed of 92.5% kumush va 7.5% hardening alloys such as copper. These other metals react to moisture and sulfur in the air, causing the sterling silver tarnish. Shu sababli, sterling silver tarnishes faster in areas […]