一级黄片免费老外,国产一级毛片婬乱,国产一级草榴视频片

  • 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.

  • 国产黄色一级AAA片,无码人妻AⅤ一区二区三区水密桃,亚洲视频精品在线观看,99久久婷婷国产综合精品电影,日韩精品无码一区二区中文字幕,色先锋稳定资源站,国产一级黄片毛卡片播放,免费一级无码毛片视频不卡顿,一级毛片免费一级直接观看 一级片黄色网站视频,99久久无码一区人妻,A级精品国产片在线观看 ,99精品久久久久精品双飞,国产98色在线 ,亚洲国产精品成人久久,正在播放一级黄色毛片,亚洲AⅤ无码一级毛片另类,欧美一级特黄高清视频 日本三级片在线免费国产欧美一级,一级特黄色录像视频,A级毛片高清免费视频 ,久久天天躁狠狠躁夜夜爽,久久国产精品萌白酱免费,日本精品视频中文字幕日韩一区,一级黄片大全免费,一级做a无码爰片久久毛片A片,一级毛片在线播放免费视频 久久精品成人一级视频,黄色网站一一级免费的视频,国产亚洲人成网站在线观看,一级A片久久精品一级A片免费,欧洲日本亚洲中文字幕,精品无码久久久久久尤物,一级免费无毛黄片,免费一级特黄在线观看视频,久久久久久高清一级毛片免费 夫妻a爱一级黄色的视频,国产一区二区视频在线观看,午夜一级免费黄色视频,欧美久久AV免费无码久久木,精品无人区一线二线三线区别,亚洲女同自慰一区二区,大学生一级毛片全黄毛片免费看,免费一级a毛片在线播放直播,欧美一级特黄AAAA色 毛片免费观看成人,精品国产乱子伦一区二区三区,中文字幕一区二区三区人妻少妇 ,亚洲中文字幕无码专区,亚洲日韩国产AV无码无码精品,精品无码AⅤ免费一二三区,亚洲一级黄片免费观看视频,黄片一级片在线观看,一级黄片可免费观看
    静宁县 胶南市 大连市 枝江市 长治县 宜川县
    赫章县 临汾市 锦州市 莆田市 海南省 临沂市
    桃园县 临泽县 象山县 金秀 来凤县 宕昌县