- vintage metal signs -Material: aluminum - MOQ: 1000PCS - Size: 3*5cm - use: mark, advertising, sign 1.Product Informationvintage metal signsMaterialaluminumprocessdie-cast, ... & peocess :Zinc alloy, brass,iron,copper (diecasting, stamping)2) Size: 20mm,25mm,30mm,35mm diameter etc (costom size ... such as Buick, BMW and Dos auto ect.2)Techniques:We have full production assembly line and our ...