中国av无毛特黄一级片,一级全黄毛片60分钟,国产精品一级毛片无码啪啪啪污污污

  • Home
  • About Us
  • Product display
  • Application Example
  • News
  • Factory Display
  • Contact Us
  • 0086-536-3521951
    中文
    Shandong Hengyuan Lvfeng Agriculture and Animal Husbandry Technology Co. LTD. 0086-536-3521951
    Hy- Push-pull type exhaust fan

    HY series High class fan is mainly made up of blade , Centrifugal Opening Device, motor , outer frame, protectingnets, supporting frames, shutters. lt is made based on aerodynamic, effectively reduce the wind resistance.

    Read more +
    HY - Cooling pad

    Corrugated paper has high intensity structure, corrosion resistant, long service life.Fine percolating and absorbing water to ensure water drip wet the wall.

    Read more +
    HY-Silos

    Silo coaming panel designed in semi-circular shape,smooth,strong with good looking.Lower coaming panel equipped with water drip edge,prevent raindrops falling on the lower cone or other parts.

    Read more +
    Negative pressure fan Cooling pad Heating equipment Fecal cleaning equipment Other fans Farming equipment Breeding accessories

    Products

    Products

  • Hy- Push-pull type exhaust fan

    Hy- Push-pull type exhaust fan

    Read more
  • Hy- Heavy hammer type exhaust fan

    Hy- Heavy hammer type exhaust fan

    Read more
  • HY - cow house hanging exhaust fan

    HY - cow house hanging exhaust fan

    Read more
  • HY - cow house hanging exhaust fan

    HY - cow house hanging exhaust fan

    Read more
  • HY-FRP cone fan

    HY-FRP cone fan

    Read more
  • HY-FRP cone fan

    HY-FRP cone fan

    Read more
  • Hy-Butterfly cone fan

    Hy-Butterfly cone fan

    Read more
  • HY-Air cooler

    HY-Air cooler

    Read more
  • About Us
    Shandong Hengyuan Lvfeng Agriculture and Animal Husbandry Technology Co. LTD. established in 2010, is a professional manufacturer engaged in the research, development, sale and service of all kinds of cooling heating and animal husbandry equipment. such as : negative pressure fan, cooling pad, greenhouse and poultry fan, light traps , manure scraper machine, feed silo, poultry farm equipment and so on.
    We are located in Weifang City Shandong Province with convenient transportation access. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction.
    Read More +
    13
    +

    Over 13 years of industry experience

    200
    +

    Over 200 product types

    2010

    The company is established in 2010

    365
    days

    Sincere service for 365 days

    Video

    R&D and Innovation
    x

    Application Example

    Read more +

    News

    Read more +
  • 12-202023
    Precautions for installing negative pressure fans

    After the wet curtain is blocked, its effective intake area will be greatly reduced, which will affect the wind speed inside the house and the cooling effect of the wet curtain. Therefore, the filter and wet curtain should be cleaned every two weeks. When cleaning the wet curtain, you can first rinse the sediment with a coarse water pipe, and then add a wet curtain cleaning agent such as Ouke to the water tank. Start the cleaning of the biofilm on the surface of the wet curtain and replace it with a clean water source.

  • 12-202023
    Common problems and solutions for wet curtain maintenance

    After the wet curtain is blocked, its effective intake area will be greatly reduced, which will affect the wind speed inside the house and the cooling effect of the wet curtain. Therefore, the filter and wet curtain should be cleaned every two weeks. When cleaning the wet curtain, you can first rinse the sediment with a coarse water pipe, and then add a wet curtain cleaning agent such as Ouke to the water tank. Start the cleaning of the biofilm on the surface of the wet curtain and replace it with a clean water source.

  • 12-202023
    Performance characteristics of push-pull fans

    The outer frame material is made of thick galvanized sheet with strong corrosion resistance; The outer frame is made using CNC machine tools, with excellent craftsmanship and high precision; There are two types of high-strength aluminum alloy cast steel for the wheel hub: a new type of twisted stamping formed fan blade;

  • 12-202023
    Working principle of negative pressure fan

    Negative pressure is a process of energy conversion that allows air to create convection in the workshop. The negative pressure horn fan is driven by electricity to convert into kinetic energy and wind energy to exhaust indoor air from the outside, thereby reducing indoor pressure. Under the action of atmospheric pressure, fresh outdoor air is replenished from the opposite window and door where the negative pressure horn fan is installed, generating air convection negative pressure.

  • 免费在线观看视频小黄片_日韩黄色视频在线观看四区区三区_琪琪AV色原伊人大芭蕉_色欲人妻AAAAAA无码_夜夜躁婷婷av蜜桃_中老年妇女的性色视频_欧洲精品码一区二区三区免费看_高清无码不卡在线观看_欧美日韩在线免费短视频 黄片视频在线看ak_亚洲v欧美v国产v在线观看_看免费色色大黄片_久久久久久精品亚洲AV无码四_无码调教一区二区三区_亚洲人成无码国产电影一区二_亚洲欧美另类激情综合区蜜芽_女人被狂躁到高潮视频免费软件_欧美亚洲人成网站在线观看刚交2 黄片高清无码免费看_免费看特级黄色视频_欧美乱伦视频播放_亚洲vA视频激情自拍五月_高清免费不卡无码中文字幕不卡在线_国产亚洲精选卡一_欧美日韩成人免费网站_糖心VLOG精品一区二区_国产精品VIP一区 色婷婷7777免费视频在线观看_久人人爽人人爽人人片AV_亚洲综合无码一区二区三区加勒比_免费无码又刺激又高潮网站_日韩资源久久极品视频三区_我要看黄色片久久99_无码亚洲精品无码专区_精品国产亚洲电影在线观看_成人黄页网站大全视频免费看 韩国在线成人一区电影_国产精品1024中文一区日韩在线_日韩欧美久久精品_亚洲精品无码久久久久牙蜜区_看毛片网站蜜臀AV_免费看曰批女人爽的视频_亚洲欧洲一区二区无码视频_精品亚洲AV无码喷奶水LIER_日韩无码18P嗯啊快舔一区二区 国产AV自拍不卡国产一区av播放_亚洲最大日无码a人片在线观看_国产精品美女一区二区三区_国产尤物视频激情五月婷婷桃_黄片视频号大全在线观看免费看_亚洲色久悠悠av在线观看_亚洲综合国产成人丁香五月激情_激情五月天社区日本免费网站一区_亚洲无码一区在又爽又色在线视频
    五华县 嫩江县 泸州市 汝州市 雷州市 潮安县
    廉江市 治县。 金沙县 老河口市 肃宁县 隆子县
    黄陵县 通化市 阜新市 申扎县 红安县 四川省