What you see in the video is our laboratory staff testing the product(Steam Eye Mask). The test aim are to detect the heating time and temperature change of the product. This is a general test method, using a multi-channel data recorder to record the temperature change and heating time of the product. Product testing is very busy. In order to ensure the stability of each batch of products, we will select different products from the production line for testing every 25 minutes.
Hanyao has four independent laboratories. We receive samples from customers, test the product specifications through our testing methods, and then produce them to meet customer requirements as closely as possible. This is also one of the reasons why we can accurately control product quality. Trusting Hanyao is like choosing safety, and we look forward to working with you. Email us at: sales@jshanyao.com