OQC virtual currency

1. QA: quality assurance in order to provide enough trust to show that the entity can meet the quality requirements, all planned and systematic activities are implemented in the quality management system and verified as needed

2. Commemorative coin is the legal tender issued by a country to commemorate the important events, outstanding persons, places of interest, rare animals and plants, sports events, etc. in international or national politics, history and culture. It includes ordinary commemorative coin and precious metal commemorative coin. The quality is generally refined and limited. In theory, precious metal commemorative coins can participate in circulation and have the function of circulation means
China commemorative coin is a kind of legal tender with specific theme, which is designed and manufactured by the National Mint designated by the people's Bank of China authorized by the state and issued by the National Bank in a unified plan. Commemorative coins are usually issued to commemorate important political and historical events, traditional culture and other things of special significance in China. Ordinary commemorative coins have the same value as RMB of the same denomination circulating in the market, and can circulate in the market at the same time. The function of commemorative coins is mainly to meet the collection requirements of the public, rather than for circulation. Special theme and limited issue are the main characteristics of commemorative coins
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