1, 50g round gold commemorative coins are refined coins, containing 50g pure gold, with a diameter of 40mm and a denomination of 800 yuan, with a purity of 99.9% and a maximum circulation of 2,000 pieces.
2.8 grams of round gold commemorative coins are refined coins, containing 8 grams of pure gold, with a diameter of 22 mm, a denomination of 100 yuan, a color of 99.9%, and a maximum circulation of 30,000 pieces.
3. 1kg round silver commemorative coins are refined coins, containing pure silver 1kg, with a diameter of 100mm and a denomination of 300 yuan, with a purity of 99.9% and a maximum circulation of 3,000 pieces.