Do state-owned grain depots and grain and oil custodians have to work shifts?

The daily work of the grain and oil warehouse manager is to let a car pull grain and oil to the warehouse, and check the delivery number and license plate number of the warehousing vehicle with the attached bill and the bill printed by the document room. Models and specifications of grain and oil storage. Carefully check whether the grain and oil are in good condition, mildew and damage.