一级婬乱免费视频,免费一级a毛片在线播放视频,久久久久久精品一级片

  • 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.

  • 亚洲A∨午夜成人片精品网站,久久亚洲美女久久久久,一级毛钱AV在线播放,在线亚洲精品福利网址导航,亚洲日本一区二区一本一道,亚洲欧美韩国日产综合在线,一级外国黄色视频,一级AV黄片在线免费观看,一级做a爱片久久毛片自慰 一级二级黄色视频三级,成人一级视频在线免费观看,亚洲AV无码成人精品区蜜桃,一区二区三区无码高清,在线高清精品一区二区三区,国产最新亚洲精品,免费一级欧美特黄极品,一级丰满少妇A爰毛片Aⅴ,中文字幕一级毛片在线免费观看 日本在线观看免费高清,亚洲日本一区二区三区在线不卡,在线观看大乳少妇勾引,成人午夜性a一级毛片免费,亚洲欧美乱日韩乱国产,日本免费最新高清不卡视频,中文亚洲?v片在线观看不卡,一级二级黄色网站一级片,一级精品毛片久久伊人二区 99精品欧美一区二区三区白人,久久亚洲精品无码Av香大香,午夜A一级毛片亚洲欧洲,成人免费一级黄色毛片,欧美成人中文综合在线视频,中文在线资源官网在线,欧美黄色一级视频,毛片特制黄片中日一级黄黄片,在线视频一级毛片免费视频 尤物一级成年人黄色视频,一级AAAAA毛片免费手机版,欧美黄色一级艳情片,a级毛片高清免费视频在线,一本一本久久A久久精品综合,中文字幕影片免费在线观看,一级黄片免费观看视频,欧美一级特黄最新播放,一级毛片一级毛片一级毛片 久久久久国产一区二区三区,国产全黄A一级毛片视,亚洲AV永久无码精品网站色欲,人妻激情偷乱视频一区二区三区,精品国产乱码久久久久久浪潮小说,最近中文字幕在线MV视频在线,一级黄片手机在线,免费一级做a爰片性色毛片免费铰,免费一级BB黄片
    岑巩县 绍兴市 曲松县 邻水 金乡县 定安县
    封丘县 焦作市 灌南县 梧州市 朝阳市 潼关县
    台南市 弋阳县 涡阳县 托克托县 正定县 凤翔县