... color 3, Nickel/lead free 4, High quality, best price Alloy Button 1. Metal/Snap button material : Zinc alloy, copper, Brass. ... .7 More than 15 years experience of manufacturing for the button.8, Nearly 12 years ecporting to Europe, USA ... buttonSnap fasteners, Fashion button, Fancy button, Double rivet, metal buckle, alloy buckle, alloy snap button, Nynon snap button...a 2012 Alloy Button for garment