1. The leak in the bathroom can be tested first, which is usually caused by the imperfect concrete and improper waterproofing of the floor drain pipe. If it is due to this reason, the best way to leak water is to fill the annular groove around the leaking floor drain with cf-2000 cement-based waterproofing agent, and use a press to compact and polish it.

2. If the waterproofing around the floor drain is not done well, it will see water after a long time. Of course, it is not ruled out…

1. Those who don't let in can't come in (anti-theft)

One of the most basic solutions for home protection and anti-theft measures is anti-theft. In the past, traditional window locks had the anti-theft effect only when the windows were closed. Scientific home protection anti-theft facilities require that they still have the anti-theft function when they are ventilated.

2. What needs to be entered can come in (ventilation)

Ventilation is one of the most basic needs of people's…

1. Those who don't let in can't come in (anti-theft)

One of the most basic solutions for home protection and anti-theft measures is anti-theft. In the past, traditional window locks had the anti-theft effect only when the windows were closed. Scientific home protection anti-theft facilities require that they still have the anti-theft function when they are ventilated.

2. What needs to be entered can come in (ventilation)

Ventilation is one of the most basic needs of…

1.If the key is not easy to open, do not order lubricating things such as edible oil on the lock This thing is easy to heat up in a dry place and produce adhesion, which causes the key to fail to open the door. At this time, we You can remove the lock, buy a bottle of a dozen or so pieces of antirust agent on the market, and just buy it and clean itSaved a lot of tips 2.For regular maintenance, the entire lock is usually removed and disassembled in about a year, and lubricated with…