High quality of the synchronous belt wheel will be more appropriate for all applications, so everyone at the time of purchase pulley, are also very pay attention to choose the high quality product. And quality of the product, it is need very high quality in all aspects, the most intuitive, is required with the surface of the wheel has the following appearance: 1, no appearance defects and drawbacks: high quality of the synchronous belt wheel should be very high quality raw material, and after the optimization of the production process, and also in terms of surface treatment technology have very optimization technology application effect. In terms of surface appearance, so the products should be 砙 Qiang any defects and drawbacks. 2, surface appearance, simple sense is very good: synchronous belt wheel surface treatment should be optimized, plus USES the high quality raw material, so will all aspects because of excellent, and can in terms of surface appearance, showing a very good sense. Specifically, the surface appearance of the product, should look have a very bright and uniform color. Synchronous belt wheel should be above the surface appearance, and we also need through optimizing choice, make sure you buy is above the surface appearance of the pulley, just means that oneself buy is high quality, at the time of application to present the application effect is very good.