国产一级特黄AV,一级毛片免费看短视频,一级特黄大片欧美久久久久6

  • 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.

  • 一级二级片在线观看,一级a性黄色视频,免费国产成人高清在线观看网站,免费观看一级成人毛片视频,天堂69亚洲精品中文字幕,日韩欧美第一区二区三区,亚洲欧洲一级特级黄在线高清,日韩黄色一级视频在线观看,免费一级做a爰片性色毛片浪潮 亚洲精品无码成人片久久,国产一级婬片AA片免费,国产亚洲精品美女久久久久久,国产成人高清亚洲,大帝AV在线一区二区三区,一二三四免费观看在线电影,免费一级特黄片欧美全片,国人一级毛片免费在线视频,一级做a爰片久久毛片喷潮A片v 精品国产中文字幕在线看,亚洲Av成人片在线观看,最近中文字幕在线中文高清版,欧美一级特黄aaa大片免费看,国产三级精品三级在线观看,中日韩一卡二卡三卡四卡,亚洲国产激情一区二区三区,日韩无码最黄一级,一级特黄aa大片免费播放 一级一级黄片视频免费看,一级成人片性感视频网,精品一级黄色视频在线播放,成人午夜精品一级毛片五,狠狠色成人综合首页,国产精品免费久久久免费,一级特黄毛片牲交老头吃奶,国产AV无码乱码一级毛片,国产片婬乱18一级毛片视頻 欧洲全裸体一级毛片永久免费视频,国产强伦姧在线观看,亚洲精品高清新茶,欧美特黄特黄特黄一级黄片视频,久久超碰色中文字幕超清,国产成人手机高清在线观看网站,国产一级毛片又粗又黄有,黄片在线bofang一级,国内黄色一级无码视频 狠狠人妻久久久久久综合蜜桃,欧美人妻在线一区二区,精品国产一区二区三区久久 ,日韩精品无码专区一区,狠狠人妻久久久久久综合九色,亚洲嗷嗷叫自拍播放一区,97色精品一级黄在线,欧美一级特黄乱妇高清视频嘛豆,一级AV性爱毛片在线免费看
    乐清市 古交市 岳阳县 靖边县 武乡县 额尔古纳市
    赣州市 梅河口市 集贤县 福建省 怀仁县 江口县
    榆林市 通城县 新干县 沿河 都匀市 汤阴县