I'm from Qingdao optical shop. I made a batch of cards some time ago, which seems to be PVC cards. I also bought a credit card device. It is very convenient to use. The card is also very exquisite, much better than before, and I am almost catching up with the bank card. The salesman's business card says Hai Fan smart card and website. Please have a look. There should be contact information on it. Let me share my experience. Give points, hehe ~ ~