亚洲一级黄色片I天天干夜夜操视频I久久久久久久久久久久电影I国产精品久久久久一区二区三区I国产黄色精品网站I国产手机免费视频

Brief introduction：

Outline

◎BHVAC-□ Explosion-proof heating ventilation air conditioning unit of KNEXCN is explosion-proof electrical product

certified by ATEX / IECEx / EAC / CHINA and used for Zone 1, Zone 2, IIA, IIB, IIC class, T1 ~ T4 group.

◎ Applicable to online analytical cabin, control room, operating room, electrical room in petrochemical, marine and

other fields where there are requirements for positive pressure ventilation, indoor temperature and humidity

regulation.