Mechanical Room Flood Door (Single) | PS Flood Barriers™
Elemake Keyless Entry Door Lock with Handle - Mechanical Lock with Keypad, Digital Code Combination Door Lock Made of Stainless Steel 304 for Enhanced Durability and Security, Right Handed (NOT a Deadbolt) - EleMake
2830 Mechanical Keyless Lock with Passage - Nationwide Industries
Sci-Fi Mechanical Doors SFX | GameDev Market
Mechanical Key Lock– Murphy Door
ArtStation - Mechanical door
Space Aluminum Mechanical Door Handle Lock Set Home Security Heavy Duty Reversible Mute Door Lock For Interior Exterior Doors - Door Locks - AliExpress
How To Become a Mechanical Door Repairer (A Step by Step Guide)