亚洲内射少妇AV影院,国产又大又黑又粗免费视频,国产三级无码内射在线看,国产精品久久香蕉免费播放,亚洲欧洲日产国码无码

Brief introduction：

◎ Explosion-proof Split 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.