Details: Employees in the laundry industry must hold professional qualification certificates issued by the labor department. If the staff can't get it, it will be unqualified. You can also see the clue from the laundry price. The cost of dry cleaning agent is relatively high. In addition to equipment, the price of dry cleaning agent is also very high, more than 3000 yuan per barrel. If a store offers dry cleaning and water washing at similar prices, you should also put a few more question marks.