G.A.T supply master alloy for goldsmith's, for silversmith's, G.A.T manufactures a wide range of master alloys for different karat, color and properties for the jewelry manufacturers. Moreover, we can provide new kinds of alloys if customers need master alloys of special quality. Our master alloys include special additives which can refine grains, promote hardness and tenacity and increase the fluidity of the carat gold alloy. The gold alloys hav