Zuanlong offers all services to create customers more value. Timely, excellent and professional after-sales service is what Zuanlong has promised and provided. You can receive complete sets of services for the projects in time, such as technical documents, drawings, product manuals, production schedules, production/inspection control plan, etc. You can also get professional services from technically professional personnel including quality follow-up of sold products, site unpacking & inspection, installation guide, debugging and technical training.


Zuanlong owns a competent and powerful team for maintenance & consultation, well equipped and high positioned. Complete quality system, effective operation and good teamwork guarantee customers timely, superior and professional services, which include:


●Assure the products are made with new materials;

●With quality certificate, qualification certificate

●Provide product installation diagram

●During the project installation and debugging process we will provide free technical guidance;

●During the installation process if you need to change product specifications, models, we are responsible for providing detailed technical information about the products and the corresponding recommendations;

●Get on-site repair call, at first time provide phone instructions and understanding of the issue, for site needed, we will response within 2 hours for the same city projects, arrived at the scene within 24 hours.

●All in all, we will provide service according to the quality system of ISO9001 .