Because this is a necessary condition for students to achieve excellent results in their studies. The teaching of Nanjing Wantong School has certain particularity. If you want to learn technology well, you must go through repeated practice and pay more attention to students' practical ability under a large number of real car training. Students should complete the operating standards and requirements set by teachers with good quality and quantity, and strive for perfection. Taking automobile beauty as an example, there are countless products such as solar film, color-changing film, polishing, waxing and crystal plating needed in each class, and they are all non-recyclable consumables. In order to ensure that students really master these skills, the school must also invest a lot of consumables for students to practice constantly. Only in this way can students really master it.