The most important four points in choosing invisible screens

1. Must choose the regular brand, the manufacturer purchases. Since the threshold of the invisible screen industry is low, some individuals have also joined in. They usually rely on counterfeiting and are at risk of failure at any time. Therefore, they warn people not to covet the cheap and lose their due service, and finally spend more time on it. money.

2. Because the yarn of the roller blind screen can be pulled up and down, so its gauze is not fixed like a fixed screen, it can be moved, so that the gauze can be easily blown out, so the gauze must be able to prevent The winds up to level 8 will not blow the gauze out. At present, there are many windproof devices and it is best to use invisible windscreen screens. When purchasing, check the inspection certificate issued by the national authority to the seller or carefully check whether it is windproof after the manufacturer has installed it.

3. There should be a safe and reliable force adjusting device or a detachable device on the yarn box. Because it is a roller blind screen window, there is a spring in the yarn box. No matter how good the spring is, the time will be too long, and the window screen will not be recovered (usually installed for about half a year). At this time, the device will start To a very large role, it not only can easily increase and decrease the force of the spring, making the spring force ideal. Without this device, the user must find a factory to send people to dismantle the screens and force them. This will not only cost more money. Sometimes, because the screens are encased in the screens, they cannot be boosted or repaired. Power-adjusting device patent number (a kind of adjustable windscreen automatic windscreen)

4. The shutter screens are buckled from top to bottom. Here I would like to remind everyone: Do not use magnets or buckles with plastics, because the magnets will be degaussed for a long time, and it is easy to absorb some sand. , Inconvenience to use; plastic parts easy to aging, not long-term use, must use metal switch devices, durable.