Stainless steel vault door design as a whole consists of two parts vault door lock controllers and password generator components. Two parts are LCD module and keyboard module, as the man-machine dialogue interface and tools. The difference is that the controller also contains a password lock and unlock the control module identification module, the user enters the password information from the keyboard, through the built-in information, calculations, comparisons and judgments, resulting to unlock the control module and the alarm system control. The password generator password generation module consists mainly based on information entered by the user, through a certain algorithm to calculate the password and password via LCD feedback to the user. Shanghai Tianqi Industry Co., Ltd. is a research and development, design, production, monopoly in one of the modern enterprise, the company designed stainless steel vault door has the following advantages: 1, good insulation properties: stainless steel vault door box with aluminum profiles and special compartments hot strip connections within the structural components using PVC material, not only beautiful appearance, and played a very good heat insulation, sound insulation effect. 2. Noise: There are structural design to reduce noise and sound-absorbing material on the air passages, to minimize noise. 3, ventilation volume: large air exchange channel design, and can be freely adjusted. 4, energy saving, environmental protection: no power consumption, no new noise, and ventilation can be sustained. 5, maintenance is simple: easy to clean, rinse with water directly. JT-202,203 type natural ventilation can be directly removed panel in the room cleaning. Reasonable structure design, all parts may no rust. 6. The structure of a solid, open and flexible, security, and with fire, anti-cut, BOP torch, anti-collision, anti-sticking and other functions. Landline: 021-37620289, portable: 18001965623