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Soldering 101 - What is Jewelry Soldering, Anyway?

Soldering 101 - What is Jewelry Soldering, Anyway?У вашего броузера проблема в совместимости с HTML5
Mark Nelson at http://www.riogrande.com explains some of the differences between hard and soft soldering. In this video we also see an insert from GIA - Gemological Institute Of America http://www.gia.edu/ that explains exactly what takes place during soldering.
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