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GM Li Feng Reports the Anti-counterfeiting Technology of Security Documents for 2022 Winter Olympics and Winter Paralympics

2021-09-17T17:19:07+08:00

On Sep17, 2020, the symposium on design, manufacture, anti-counterfeiting and verification for 2022 Beijing Winter Olympics and Winter Paralympics was held at the First Research [...]

GM Li Feng Reports the Anti-counterfeiting Technology of Security Documents for 2022 Winter Olympics and Winter Paralympics2021-09-17T17:19:07+08:00