1. ✿ Made of high quality zinc alloy material, sturdy, and long service life.
2. ✿ 10000PCS keys will not open each other, guard against theft and prying-resistant.
3. ✿ Suitable for vending machine, automatic selling machine, industrial tank and safe box.
4. ✿ Professional manufacturing, stable characteristics and high reliability. Fine workmanship, 3 keys to a lock, safe and practical.
5. ✿ If you have any problem for our product, you can contact us. We will be delighted to help you and reply as soon as we can.