欧美性猛交XXXX黑人猛交,中文字幕一区二区三区精彩视频,亚洲六月丁香婷婷综合,亚洲自拍另类制服在线,欧美在线精品91国自产拍免费

Jinan moland Environmental Technology Co., Ltd.歡迎您!

EN

聯(lián)系我們

Jinan moland Environmental Technology Co., Ltd.

電話(huà): 0531-87205759

Email:jnmolandchina@163.com

地址:No. 11889, JingShixi Road, Ping'an Street Office, Changqing District, Jinan

Treatment of blowing and sucking workshop

瀏覽量:?? 來(lái)源:http://www.sctyc.com??作者:美藍環(huán)保

The integral ventilation displacement dust removal is to use the characteristics of welding fume suspended above 4-8 meters due to thermal rise and gravity. The suction pipe is installed on the column about 4-5 meters high on one side of the workshop. Two layers of air suction outlets are set on the pipeline. The wind power of the dust collector is used to effectively collect the dust floating on the upper part of the workshop. The air outlet is set on the dust removal pipe on the other side of the workshop, and the qualified air discharged by the dust collector is used as the air supply to speed up the air flow and make the welding dust flow to the suction outlet.

1.jpg

?       
    
       欧美性猛交XXXX黑人猛交,中文字幕一区二区三区精彩视频,亚洲六月丁香婷婷综合,亚洲自拍另类制服在线,欧美在线精品91国自产拍免费