We provide: Pre sales, customer consultation and paid to provide samples. During sales, we help customers purchase and receive relevant spare parts and materials, arrange transportation channels and centralized distribution to customers. After sales, we provide the basic use of training and six month warranty period. In addition, we will give cash rewards to every user who takes videos of our products and uploads them to social media (note: the number of “likes/thumbs-up” and videos standards must meet our requirements)