Chang Di and Dongling can be bought on Taobao, or in an electrical appliance store. Generally, buyers must buy an oven with a height of more than 20 liters, a fixed time of 60 minutes (even 120 minutes), a temperature of 250 degrees, and a top and bottom tube. Chang Di CKF-25B is all good. I use this at home. The raw materials for making cakes are butter, fine sugar, low-gluten flour, eggs, pure milk, baking powder, baking soda and vanilla extract. The tools for making cakes are baking net and baking tray, heat insulating gloves and baking tray handle, food scale, measuring cup and measuring spoon (the above three must be available). Electric egg beater (essential), rubber scraper, metal non-stick cake mold.