Materials Accepted : Platinum, Aluminum, Brass, Copper, Gold, Gold pins, Lead, Niobium, Palladium, Rhodium, Silver, Stainless… 17 materials

Materials Accepted : Platinum, Gold, Palladium, Precious Metals, SilverNot Specified

Materials Accepted : Platinum, Computers, Electronic Motors, Gold, Lead, Nickel, Precious Metals, Silver, Titanium 9 materials

Materials Accepted :Aluminum, Brass, CARBIDE, Copper, Gold, Nickel, Silver, Stainless 8 materials

Materials Accepted : Platinum, Gold, Palladium, Precious Metals, Silver 5 materials