How many classes does Huaian Guo Rui Chemical Industry have?

Guo Rui Chemical Plant in Huai 'an has two shifts. According to relevant public information, bonuses, performance pay, five insurances and one gold, year-end bonus, attendance bonus and bonus commission. Workers shall not work more than 8 hours a day and 44 hours a week. If it exceeds 8 hours, the employee shall be paid overtime wages, with a maximum of 3 hours per day.