What to do with the anti theft door is coated with white powder on the wall

Hello, I am handed over to the manufacturer who installed a new security door for me, because if you give the scrap collector will give you 10 pieces of 20 yuan, even if your door is 8 into a new one, and the manufacturer of the security door will do its best to install it because of the reason you gave him.

There are several stiffeners in the interlayer of the anti-theft door body, and are filled with foaming agent, rock wool and other fillers, among which rock wool is the material that can be soundproofed, but there are also anti-theft doors that do not put rock wool inside, the sound insulation effect of such anti-theft doors will be much worse, it is a little difficult to modify the anti-theft door, and the best way is to install a wooden door. Security Door Matters Supplement: >>>More

There are several stiffeners in the interlayer of the door body of the anti-theft door, and filled with foaming agent, rock wool and other fillers, rock wool is the material that can be soundproofed, but there are also anti-theft doors that do not put rock wool, the sound insulation effect of such an anti-theft door will be much worse, you want to modify the anti-theft door is a little difficult, the best way is to install a wooden door.

Is the pit big, if it is not very big, you can find an artist to help you make up for it, and making it up will not affect the safety performance and use.

It's not easy to open, is it the kind that the handle on the outside can't be pressed and can only be unscrewed with a key. If it is difficult to screw it, and it is easy to screw it by pushing the door with your hand, it is locked, and you can smear some butter on the lock plate. It is estimated that it is caused by aging, and the anti-theft door should still choose the top ten brands, with a long shelf life.