18禁喷水流白浆自慰视噜噜噜,国产精品久久久久久久久鸭无码,一二三四日本高清社区5,在线观看无码AV免费不卡软件

New development of ozone disinfector in Shandong Yanxin Environmental Protection Technology Co., Ltd

Column:Company news Time:2020-03-11
The ozone disinfector independently developed by Shandong Yanxin Environmental Protection Technology Co., Ltd. is suitable for air disinfection, air oxygenation, new house formaldehyde elimination, etc.

The ozone disinfector independently developed by Shandong Yanxin Environmental Protection Technology Co., Ltd. is suitable for air disinfection, air oxygenation, new house formaldehyde elimination, etc.

Instructions for use of ozone sterilizer

 

100 cubic meters

200 cubic meters

300 cubic meters

400 cubic meters

Open for 5 minutes

Open for 8 minutes

Open for 10 minutes

Open for 20 minutes

 

When the ozone sterilizer is working, it is necessary to evacuate the confined personnel in the space. After the ozone sterilizer is finished, it is necessary to wait for 30 minutes before the personnel can enter the window for ventilation. In case of continuous use, the interval shall be 5 hours. After use, use a brush to clean the dust at the inlet and outlet (in the off state) to prevent dust from entering the machine interior and affecting its service life.


把女的下面扒开添视频| 精品久久久久久亚洲中文字幕| 女厕厕露p撒尿八个少妇| 一二三四在线视频观看社区| 国产午夜精品一区二区三区漫画| 50岁老熟女高潮喷水| h无码精品动漫在线观看| 丝袜 中出 制服 人妻 美腿 | 国产亚洲精久久久久久无码| 可以直接看的无码av| 无码人妻久久一区二区三区免费 | 欧洲不卡二卡三卡四卡免费| 色欲aⅴ亚洲情无码av蜜桃| 欧美黑人巨大xxxxx| 亚洲国产av无码专区亚洲av| 无码av一区二区三区无码| 精品人妻无码区二区三区| 精品久久人人做人人爽综合| 无码粉嫩虎白一线天在线观看| 97在线观看免费版高清| 粉嫩小泬无遮挡久久久久久| 绝顶高潮合集videos| 亚洲国产精品毛片av不卡在线| a级国产乱理伦片| 国产日韩精品欧美一区| 精品一区二区三区无码视频| 精品乱人伦一区二区三区| 九九久久自然熟的香蕉图片| 在线观看亚洲av日韩av| 人人妻人人狠人人爽| 偷偷要偷偷鲁影院| 国产精品免费视频网站| 久久人人爽人人爽人人av| 午夜影院0606免费| 国产成人精品优优av| 中文字幕成人精品久久不卡| 欧美xxxxx高潮喷水麻豆| 国产狂喷水潮免费网站www| 男女xx00上下抽搐动态图| 国产高清在线精品一区app| 国产9 9在线 | 中文|