Coating: Polyester coating, single side coating or double sides coating. It is imported from Germany, nontoxic, good for food, certificated by FDA, heat-resistant and steam resistant. 
Coating color: Transparent, gold or according to customer's request. 

Usage: Bottle cap in medical use, vial seal, pilfer proof caps, food usage, kitchen usage, pharmaceutical usage, label & Tag, Seal & Closure and other packing usage.