How is the treatment of Wuhu Tianhang Enterprise Group?

I recently had an internship at Tianjin Airlines (arranged by the school), which cost 40 yuan a day and was divided into three shifts: day shift: 8:00-18:00, night shift: 18:00-2 a.m. the next day : 00, night shift: 2:00-8:00 in the morning, shifts take turns a week, each shift has only one working meal, which is free. But if you are a regular employee, the salary is only 40 yuan a day in the first month. From now on, it is just a case-by-case basis. The more work you do, the more you will get. Tianhang mainly produces sheet metal parts (air conditioners, washing machines, refrigerators, solar energy, etc.), most of which are stamping machines. The work is tiring and dirty.