1. Description
The "U" shape front plate (aluminum alloy) is mounted on the lateral side of door, and main lock case and auxiliary lock cases, which are mortised into the door, are mounted on this plate. The strike plate is mounted on the face side of the frame with suited holes to the deadbolts and latch.
Suited profile cylinder is keyed into main lock case and is fastened with screws, which retracts the latch and operates deadbolts of main lock and auxiliary locks with a double turns[...]