Different meanings; different ways of use.
1. Different meanings: product appearance patent drawing design refers to the appearance design of industrial products, that is, the style of industrial products; product models refer to imitating the appearance, color, shape, etc. of the product through special The method makes the model almost the same as the actual product.
2. Different ways of use: product appearance patent drawings are protected by patents, making the product's appearance design more valuable; product models are imported into the prepared 3D model on the workbench and are not protected.