Features: The unique pure stainless steel material in the market and whole-metal-made close electronic lock. The lock is the latest design patent item with elegance and luxury. Super exquisite craftsmanship, never rusted or faded. This product from cover, machine departs to mortice all part really adopt the stainless steel material to make machine components. This product allocate with the European standard pure stainless steel mortice. Door thickness request is no less than 3.5cm. Choices for RF Card: America TEMIC / America TI / Germany LEGIE / Philip MIFARE.