One day one of my customers sent me a photo of knee pad and he said he wants to find its factory. The photo of knee pad doesn’t have any information and I request him take a photo of its package. Because the package is customized, doesn’t have the information of its real factory too. But finally I found that, at the bottom of the box, there is a bar code. So I tried to check on the official website. Tried many times and I found the name of the manufacturer. But get in touch with the person in charge is difficult too. Finally I succeeded, and after that, my customer and the factory have made many orders.