... : Nickle free / no-azobenzene / lead free.10. Metal button with superior quality & competitive price, prompt lead-time. ... belt, bag, shoes, hat, etc. Foshan yuanze hardward factory mainly producing Metal button, shank button, alloy button, zinc alloy button, ... Tack buttonSnap fasteners, Fashion button,Fancy button, Double rivet, metal buckle, alloy buckle, alloy snap button,Nynon snap button.... ...