Commemorative coin production factory production _ _ medal silver medal production _ _ Production _ Medal production plants supply metal badge medal World Games medals zinc alloy production process design supply metal medal medal medal World Games medals medals medals zinc alloy production process design Material: Alloy: baking plus commemorative coin is the currency of one country to commemorate the international or national politics, history, culture and other aspects of major events, outstanding figures, monuments, rare plants and animals, sports, etc. issued, which includes ordinary commemorative coins and precious metal commemorative coins. Quality is generally refined, limited edition. Chinese coins is a specific topic, by the National People's Bank of China authorized the Designated National Mint designed and manufactured by the National Bank issued a unified currency planned legal. Commemorative coins are usually issued to commemorate the country's major political and historical events, traditions and culture of the things that have special meaning. Ordinary commemorative coins with the same denomination value of the yuan is equal to the market circulation, can circulate in the market. Commemorative coins role is mainly to meet the requirements of public collections, and not for circulation. A specific theme and limited edition commemorative coins are the main characteristics.