久久久久久久久久无码I久久人气网免费观看深夜影院I人妻丰满熟妇av无码区一乱码I欧美三日本三级少妇三99在线观看I黄色小视频免费在线观看I丝袜a片I国产精品久久久久久亚洲AVI亚州AVI91丨九色丨PONY丰满I嫩草视屏

Brief introduction：

◎ Explosion-proof Unitary air conditioner of Knexcn is explosion-proof electrical product certified by IECEx / ATEX / EAC / CHINA and used for Zone 1 , Z o n e 2 , Z o n e 2 1 , Z o n e 2 2 , I I A , I I B , IIC,IIIA,IIIB,IIIC class, T1 ~ T4 group. 

◎Applicable to control room, driller room, workshop, hazardous goods warehouse in petroleum, chemical, military, power utility, marine engineering and other fields where flammable gas or vapor may react with air to form explosive gas mixture in a normal operation.