Market trends and brand selection of inner rotor fans

What should be done about the market trends and brand selection of internal rotor fans? Regarding this, the relevant person said as follows: Industry trend reference: Pay attention to the technical trends in the business plan, such as the increasing penetration rate of external rotor motors in compact designs. 2. Brand and After-sales Service: Give priority to brands that offer a 2-year warranty and local service outlets to reduce after-sales costs. 3. Certification and Standards: Verify CE, RoHS and other certifications to prevent safety risks caused by non-standard products.