After-sales service
　　Hepai's after-sales service centers on related products after installation. The company has built a complete installation equipment archives and after-sales service system. Through the multi-level and three-dimensional structure of telephone technical support, network technical support, on-site technical support and follow-up project technical consultation, it can ensure timely and rapid provision of perfection to users After-sales service and preferential items. Include:
　　 After the product is installed and accepted, it will be guaranteed for free within 1 year;
　　 Regular return visits for maintenance, providing fast on-site services;
　　Provide hotline consultation services and online after-sales technical support;
　　 The service life of the product is 15 years, and the warranty service is provided during the service period;