娇妻借朋友高h繁交h,公交车伦流澡到高潮hnp,六月婷婷网视频在线观看,天堂√最新版中文在线

Language:CHINESESENGLISH

Homepage > Product > Ventilation ball
Contact Us
  • Address:Pingtang Industrial District, Shipeng Village, Shishan Town, Nanhai District, Foshan City,
  • Phone:0757-81002668/0757-63323396
  • Fax:0757-81196682
  • Contact:梁先生/Mr Leung
  • Phone:18900873383/18900873268
  • E-mail:sbs@sbsprefabhouse.com
  • Skype: sbs-Candy
  • URL:http://www.e-sosa.com

Ventilation ball

Ventilation ball

 

Natural ventilation device, also called the roof ventilator and natural ventilation ball, is ventilation equipment put on the top sides of the industrial buildings. Without electricity supply, it brings enough outdoor fresh air in 24 hours, promoting the plant air circulation convection and improved working environment.

Common material on the market: color steel and stainless steel (201 and 201 stainless steel material). This product is oil and electricity free, no need to repair with simple installation. It only needs 3.2 km/h wind or more than three degrees Celsius temperature difference between indoor and outdoor conditions to ensure operating 24 hours a day. It can reach the goal of ventilation.

Function: Produce air convection, heat release, reduce air conditioning load and increase indoor fresh air. It can also drain moisture, mildew and steam humidity from the roof, keeping the proof dry. Compared with heavy electric blowers, it reduces support costs and noise and saves electricity.

Application: Applicable to all factories, warehouses, and the roof ventilation, aeration, air release spaces.

Working principle:
1. Using principle air convection in nature, flow any parallel direction air, speed up and shift to vertical air flow.
2. Using stack effect produced by the buildings and equipment combination to achieve indoor ventilation.

Natural ventilation device airflow parameter list: air units: m3/hr
 

 

                            External wind speed
Specification

0.5

1

1.5

2

2.5

3

3.5

4

4.5

Ф300

7

15

67

126

187

352

668

1683

2472

Ф450

34

131

334

423

600

833

1417

2834

3960

Ф500

39

151

384

486

690

1015

1630

3259

4554

Ф600

61

173

684

985

1397

1890

2457

3410

4946

Ф800

92

260

1026

1478

2096

2835

3686

5115

7419

Hits:10798 Time:[2024-11-23]

Copyright:佛山市勝邦鋼結(jié)構(gòu)有限公司 Foshan Shengbang Steel Structure Co., Ltd. Record Number:粵ICP備13078463號(hào)
欧美一级片黄片日韩黄片| 国产农村av对白免费看片| 骚屄太粉胸太白高清Av| 老熟女高潮喷水了| 狠狠热免费视频| 骚货操死你骚狗视频网站| 无码免费岛国片在线观看| 天天狠狠夜夜狠狠噜无码| 少爷托着娇乳撞击娇吟| 欧美久久综合精品二区无| 暴肏女人的小骚屄12区| 国产不卡免费黄视频在线| cao女人的网站·oN| 欧美亚州二区| 嗯嗯嗯嗯嗯好的好爽视频| 大鸡巴操我好大好爽视频| 久久久久中国黄色一级片| 午夜福利亚洲专区欧美专区| 欧美日韩在线视频一区不卡| 大鸡吧操小逼电影免费看 | 久久久国产精品ⅤA麻豆| 亚洲国产精品一区二区精品| 狠狠爱av一区二区三区| 美女逼操出北京网站的钱| 亚洲国产精品一区二区精品| 99re人人操| 2021最新国产在线人| 色悠悠综合在线资源网站| 超碰日日依伊人| 国产黄啪啪啪啪啪啪啪啪啪| 男插女阴茎高清免费观看| 女人被男人吃奶到高潮| 日韩精品一区二区三区色欲av| 性涩av闺蜜一区二区三区| 岛国动作片av久久精品| 胖女人一级片bbbbn| 黑丝美女逼逼操死流白浆| 亚洲av第一区二区三区| 日本不卡不码视频在线观看| 久久久久久久bbbb网站| 中文字幕无码乱av免费|