... sound and light as popular promotional gifts 1. Article Namecustomized rubber keychain with flash light or music 2. MaterialIron, ABS, ... option: nickel, silver, gold, antique silver, antique gold etc4:Processing: die casting, polish, plating etc, as per customer's request5 ... strong ability to develop new products, sales, after-sales service and quality controlWe have 3 floors for working place, first ...