About the permeability of iron fences

During the manufacturing process, iron fences need to be removed from oil, impurities, rust and anti-rust treatment before they become household iron products, so you should pay attention to whether their appearance is bright when selecting them. Iron fences should also be used as little as possible in areas that are simply scratched and wet, but should be placed in a dry, ventilated place to prevent corrosion. And when the iron fence has dust.

Able to use a soft brush to brush along the gap, and then scrub with a damp soft cloth, never use a hard brush. The following introduces the permeability of iron fences: Many large and medium-sized cities have overloaded populations, and planning has exceeded the ability of self-purification of the environment. In urban planning, sufficient ventilation mains have not been left in the layout of huge buildings. Imperviousness has largely prevented the smog loss in large and medium-sized cities.

Demolition of the wall and green can also improve the ability of urban ventilation and haze, the economic cost is relatively low, but also brighten the city and improve the image of the city. Therefore, it is advocated that large- and medium-sized cities are encouraged to start demolition and greening at the national level, encouraging such actions as brightening cities and improving urban ventilation. Develop encouraging guidelines for improving urban ventilation and haze ability, such as wall demolition and green penetration, and include wall demolition and green penetration as one of the considerations for the construction of ecologically livable cities.

You can also select some cities as demonstration points, and start by dismantling the walls and green, summing up the experience, and forming a model that can be learned and imitated. Together, it is strictly constrained that the area under construction and the area to be built is completely surrounded by pavement or walls. It is necessary to leave a satisfactory ventilation channel and replace the fence with a transparent fence. When planning the building layout of the urban area to be built, full consideration must be given to the prevailing local wind direction and wind, and a satisfactory channel for ventilation and haze should be left.