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Anonymous users2024-01-24(Zongjun anti-theft window) reminds you: buy a finished product, similar to the hydraulic switch of the unit door, open more than 90 degrees and forcefully outward, and the other is to study a small device by yourself because gravity blocks the door so that the door can not be closed.
Springs are a powerful thing!! You only need to press the toilet mouth a few times with a toilet The suction of the spring will have an effect to help you suck out the plug If you want to buy a spring, you also need China Spring Trading Network!!
Isn't this stuff copy
This is called the alarm button, the effect is, when someone at home suddenly feels uncomfortable, they can't move, they want to rescue urgently, they need someone to help, you can press this life-saving button, and your community network, but don't usually press it, otherwise people don't believe it, something really happens, and people don't come to the door. >>>More
It's a smoke detector, and if it's on fire, it's going to call the police, and it's something that can be monitored on the roof.
Put some rice and some food in the bird's nest, I advise you not to dig it. Love nature!
Usually the flue of the building is composed of the main flue and the auxiliary flue, and the flue mouth of each house leads to the main flue belongs to the auxiliary flue, so that the smoke exhaust of each house does not belong to the smell crossing, and finally the main flue leads to the outdoors. >>>More