China Petroleum & Chemical Corporation is China's largest supplier of refined oil and petrochemical products and second largest oil and gas producer. It is the world's largest oil refining company and second largest chemical company. It ranks second in the world in terms of the total number of gas stations and ranks 5th among the 2022 Fortune Global 500 companies.

• Gas stations violate regulations by allowing car owners to pay with their mobile phones next to gas pumps, affecting refueling safety.
• Payments and invoices often require queuing, causing congestion in convenience stores.

Gas stations use Seuic explosion-proof mobile computers for cashiering, which makes data statistics more timely and reduces the workload of employees, reducing management costs while improving work efficiency; for customers, one-click refueling and one-click invoice issuance not only reduces the time spent queuing for refueling, but also makes it safer and more convenient.

Compared with the original cashier at the convenience store, the efficiency of using mobile computer cashier is increased by more than 80%.