Construction construction fastener type steel pipe scaffolding safety technical specifications of the latest version of what is
2 Since the intention to paste the wall, then the external walls need to chisel and then brush the cement mortar to shop
In fact, the effect of air purifier is not ideal, if the conditions, it is recommended that the family to install fresh air system, the work of the new wind system fresh air system is introduced from abroad, the vast majority of families in Europe and the United States will install fresh air system, its role is ventilation , Keep the indoor air has been fresh (long hours do not ventilate will lead to the breeding of many bacteria, oxygen concentration, health hazards), but the fresh air system to China, because China's air pollution is more serious, so the Shanghai high pole For the wind of China's fresh air system has been improved, in addition to the role of ventilation to increase the role of air purification Hao Ting fresh air system works: Hao Ting fresh air system is divided into two parts of the host and breathing treasure, the host installed in the living room or Balcony, is responsible for the outdoor air purification into the room, at the same time, breathing treasure installed in the bedroom windows, the indoor dirty air discharged to the outside, and then use the living room and the pressure difference between the bedroom, so that fresh air from the living room to the bedroom, So that the room has been kept fresh and clean air Second, the fresh air system and window Compared to the wind: 1
