The full range of activities to add value to the product, including after sales service for the purpose, using a continuous opening such a warranty, maintenance, etc.
Providing a comprehensive view of activities to add value to products. As well as after-sales service Customers use the company for the purpose of continuing such warranty maintenance and so on.
Activities that fully cover the service to add value to the products and after-sales service. For the purpose of customers to use services continuously, such as warranty, maintenance, etc.