This represents a unique symbol. It may signify a product. To fully comprehend its meaning, we need more details. Perhaps it is associated with specific system. Looking into the source of this code would be important. Thomo Truc Tiep Da Ga 2023 Thoi gian den tai/vào/cho đến ngay thang/ngày tháng/ngày/ 15/mười lăm/năm mươi l�