Is it better to deliver food in coal mines or to supervise safety?

Good safety supervision. The person in charge of coal mine food delivery is the person in charge of food delivery, and the security check is the security inspector. The main purpose of the security check of coal mine recruitment is to ensure the safety and production of employees, and to conduct security checks on employees entering and leaving the coal mine to prevent losses in the coal mine. It is forbidden to bring inflammable and explosive materials into the coal mine, so the security check is good.