pin badge Material options:Zinc Alloy, brass Design:according to clients' design or size pin badge 1.craft: punch brass+stamp the out shape+jointing blood pin, butterfly cap+polish+plating gold+fill in enamel2. Material: brass, zinc alloy, iron, stainless steel,aluminum (Pls check the attached product)3. plating : gold, silver, bronze,nickle,chrome,anti-pewter,anti-brass,anti-copper,nickle-free4. ...