1, Shi Sheng Tong Can can be used in Shenyang, not only by bus, but also in and out of supermarkets.
2. Shengshitong health code is the only health code in Shenyang that can be used in some parts of the country. It can be used not only in Shenyang, but also in the whole country. Therefore, Shi Sheng Auto is omnipotent.