Zinc alloy die castings have been used in a multitude of applications of many decades with great success. Their good physical and mechanical properties, excellent finishing characteristics, and resistance to atmospherice corrosion have enabled them to withstand the test of time.Your company logo or custom design cast in fine solid zinc alloy. The elegant rich finish and fine detail gives these lapel pins a high perceived value. commemorations, giveaways, fundraisers and association membership drives. Die cast pins made by zinc alloy, It's the better choice for a larger quantity lapel pins.