... + soft enamel 3)Size: 20mm 4)Plating: gold High quality button badge pin back :- Process:Various depending on the ... Offset printing, Laser/ Silk screen printing, etc) - Material: Brass, zinc alloy, tin, iron, pewter, aluminum, stainless iron, copper, etc. - ... - Attachment: Various - Color reference:Pantone color chart - Minimum order quality: No MOQ limit, we accept small orders. - Packing: Each ...