00:00 Highlights
00:43 Manufacturing Mechanical Locks
16:31 Assembling Combination Locks & Passive Electronic Locks
20:42 Testing Locks & Keys
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Factory Production Collection
https://www.youtube.com/watch?v=Ktjx4-CGgts&list=PLyD7c5oblVuWqE6BbNLMfN6f0BmjyEE6T