What is going on with the activities before and after the old security door

Updated on Security door 2024-08-31
1 answers
  1. Anonymous users2024-01-24

    The walls are not strong. The expansion bolt was not firmly struck. It is recommended to buy a bottle of polyurethane foam filler and hit it into the gap between the door frame and the wall. Hold up the door before you hit it. Don't let the door frame wobble. After 2 hours, it will be firm.

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