https://mmta.co.uk/
MMTA - Minor Metals Trade Association
The Minor Metals Trade Association (MMTA) is a not-for-profit organisation, which serves to benefit and promote the interests of its international Membership,...
minor metalstradeassociation
https://www.rit.edu/study/metals-and-jewelry-design-minor
Metals and Jewelry Design Minor | RIT
Metals and Jewelry Design Minor complements a student’s major by developing another area of professional expertise.
jewelry designmetalsminorrit