1. Be sure to choose a regular brand, manufacturers to buy. Due to the low threshold of the invisible screen window industry, some individuals have joined in. They generally have several people who rely on counterfeiting to live at any time and face the risk of bankruptcy. Therefore, they are warned not to seek cheap services and lose the services they deserve. money.
2. Since the yarn of the roller blind screen can be pulled up and down, its gauze is not fixed like a fixed screen, it can be movable, so that the gauze is easily blown out by the wind, so the gauze must have Winds of six to eight levels do not blow the gauze out. At present, there are quite a lot of windproof devices. It is best to use a piece of windproof invisible screen. When purchasing, check with the seller for the test certificate issued by the national authority, or after the factory is installed, carefully check whether it is windproof.
3. There must be a safe and reliable force adjustment device or detachable device on the yarn box. Because it is a roller blind window, there is a spring in the yarn box. No matter how good the spring is, the time will be weak after a long time, so that the window screen will not be recovered (it will be reflected in the installation for about half a year), then the device will start. To a very large role, it can not only easily increase or decrease the strength of the spring, but also make the spring force in an ideal state. If there is no such device, the user must find a manufacturer to remove the screen window, so that not only will it cost more, but sometimes the yarn box of the screen window will not be able to repair or repair after it is wrapped. Force adjustment device patent number (an adjustable pre-energized windproof automatic screen window)
4. Roller screens are buckled from top to bottom. Here I want to remind everyone: don't use magnets to suck or use plastic parts to buckle, because magnets will degauss after a long time, and it is easy to suck Some sands are inconvenient for use; plastic parts are prone to aging and do not last long, and metal switchgear must be used for durability.
Fabricated Steel Structure Parts
Structure Parts,Steel Structure,Heavy Steel Structure
Fenghua Jade Motor Co., Ltd. , http://www.china-steel-structure.com