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Anonymous users2024-01-24In addition to the expansion bolt fixing, it is also necessary to pour cement mortar into the reserved openings on both sides of the door frame.
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Anonymous users2024-01-23The people upstairs are not very professional: professionals need to install special tools and special materials in order to open and close silently.
The door frame should be selected mm and mm respectively according to the level of anti-theft safety B, C and D. >>>More
You will be held responsible for improper acceptance of civil engineering. >>>More
1. All German universal wrenches can be screwed on the nut, and can also be on the triangle nut, 8 corners, 4 corners, and can also be used as a Phillips and flathead screwdriver, I don't understand.
Fixed to No! Each brand has some small differences in the width and height of the door! However, the general height of those finished products on the market is about 2 meters, and the width is about 80CM 90CM! If you're going to do a security door. >>>More
This screw in the middle is used to secure the lock cylinder, so you have to put the cylinder in the right position before it can be installed.