Russian church bells are commonly cast using a mixture of bronze and tin , often with silver added to the bell metal , to produce their unique sonority and resonance .
At that time , several foundries for bell making were established in Russia .
Russia church bells are commonly cast using a mixture of bronze and tin , often with silver added to the bell metal , to produce their unique sonority and resonance .
At that time , several foundries for bell making were established in Russia .