Introduction:
[Vietnamese] Quy mô rộng với nhiều chi nhánh, địa chỉ bao phủ quanh Hà Nội

- Support customers during the use of products
- Contact by phone with customers who have been and are CURRENTLY using the company's products according to available data.
- Assist customers in answering questions about the product, instructing customers to use the product properly.
- Exploiting customers' need to buy more products.