Sales&service network Sales network For better servicing customer, GONGTIE sets up china-east, china-south, west-south and china-north five sales service centers, also sets up one marketing dept. and R&D center in Europe. For enhancing the service quality, continuously improving the products'quality, GONGTIE will adhere to the concept that put the best technical personnel on the first line, completely understand the most direct and objective customer requirement, then to provide the best service for the customers. MOST competitive smart-manufacturer