C1068 Nine-hole lock

Ye Cheng handed the box over to Liu Xi. He didn't like the way Black Bean looked at them, it was as if he was looking at a dead man.

The box was made very precisely, comparable to any modern mechanism lock!

"Boss, where did you get this?" Nine holes in a lock is a rather ancient technique, and it is very difficult for humans to create such an exquisite mechanism now. Even if they copy it