After-sales service: After-sales service is extremely important for the company. Smet has always adhered to the business philosophy of “Quality is flawless and service is not critical”, continuously improving the service quality of the company and allowing customers to feel the best service.

Service tenet: Customer satisfaction first.

Service Guarantee: Strictly abide by the state's "three guarantees" regulations.

Convenient service: Provide professional service window and provide on-site service.

Consulting services: answer customer's advice on products and services, accept all product repairs, and resolve customer service complaints.

Quality service: return visits to all installation and maintenance services.