1) Prepare a clean cotton cloth and a basin of washing powder diluted water in advance. Don't use detergent, or you will leave a black mark on the table! (2) Remove all visible solid garbage from the desktop. (3) Soak the dishcloth in the washing powder solution, wring it out slightly, fold it into a square, spread the hands and palms side by side on the desktop and push it up and down, and gradually push it along the horizontal direction of the table until the whole table or the whole row of connected tables is wiped clean. (Note: The amplitude of A should not be too large in the process of lateral propulsion, otherwise it will cause omission. B The contact surface between the rag and the table will soon be covered with oil, so the rag box should be unfolded in time and the clean surface should be replaced. Try to use rags on all sides to reduce the number of centralized cleaning and improve work efficiency. (4) Wash the rag, wrap the rag around the corner of the table with your thumb and palm (not only to cover the upper part of the table, but also to cover the sides and lower part), and push it around the table. (5) Wipe the legs and other parts that need treatment. In this way, a standard operating procedure is completed. You can carefully observe the fruits of your labor from all directions, and you will find that it is perfect and professional!