I work in a special order / casting house / trade shop/ we cast in many metals -gold 24-10k -silver fine, 925, anti tarnish, - platinum 90/10 95/5 - paladium 950 750 585 -silicon bronze - brass - stainless steel.we have cad/cam department/ laser welding / we have been in operation since 1989. I can be reached at 888-925-7558 ask for "shaiki" .