1, in line with the "GA1512-2018 public security single police equipment metal handcuffs" related standards;

2. Size: L:55. 12MM H 54. 01MM B 81.75MM;

3. Color: The surface of the metal handcuffs is red, the color of the left and right handcuffs is the same, and the fan beam is matty silver;

4. Durability: key insertion or extraction ≥ 7000 times;

5, anti-lock positioning performance: metal handcuffs in the locked and anti-lock positioning state to apply 1500N static pressure, there is no loose meshing and failure;

6. Falling reliability: The metal handcuffs are placed horizontally, with the chain ring facing up and the two handcuffs facing down vertically, and the chain ring vertically downward and the two handcuffs facing up. After falling freely from a height of 1.5m on the concrete ground, they can be used normally;

7, corrosion resistance: corrosion resistance grade should be greater than or equal to 9.