How much is a milling machine master in Shenzhen for a month?

That depends on what products you make. In my previous factory, it was used for communication equipment and radiators. Generally, the milling is about 3200, if the CNC milling machine can be programmed, it will be about 3000, and if it can be operated alone, it will be more than 2500. This includes overtime pay (plus working hours of 100 hours per month) and performance bonus. In fact, many factories are piecework now. As long as the work efficiency is high, the salary will be high.