午夜影院一级毛片,一级做A爱片久久蜜芽,欧美午夜一级艳片欧美精暴力

  • 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.

  • 伊人色综合久久天天伊人_满清十大酷刑在线观看_白丝袜喷水网站日美欧亚久久综合_免费观看AA黄片_成人免费无码大片A毛片抽搐_久久激情影视久久久婷婷网_色综合天天综合网国产成人网_国内精品久久久人妻中文字幕_成人片在线免费视频 国产精品无码av在线播放_亚洲va无码直接在线观看_西瓜在线看免费观看视频_色情欧美片午夜国产特黄_狼色精品人妻在线视频网站_手机视频免费在线看黄片_性高湖久久久久国产VA香蕉视频_特级黄片毛片AA_精品国产一区二区三区久久影院 国产A级理论片无码老男人_国产电影一区二区三区在线观看_露脸白浆在线播放av在线不卡韩国_最近的2019免费中文字幕_国产精品亚洲一区二区三区在线_男人J进入女人P免费狂躁_免费看午夜大片美国久久久久久久_免费看黄片的视频在线观看_国产欧美va欧美va在线观看 久久毛片免费看一区二区三区_日韩综合在线人人爽人人香蕉_免费人成欧美激情_丝袜美腿国产一区手机在线不卡看片_亚洲一区无码电影_欧洲亚洲黄片观看_亚洲影院一区99久视频精品_在线日本黄色网站网友在线亚洲视频_亚洲精品一区二区国产精华液 中文弹幕日产无线码一区_免费黄片小视频在线播放_国产精品美女一区二区视频_亚洲精品久久激情国产片_日日碰日日摸夜夜爽无码_免费国产黄网站在线观看视频_在线观看免费色六月婷婷激情综合_国产一产二产三精华液区别在哪里_三级福利篇无码一卡二卡高清无码 欧美淫秽视频一区二区_成人在线爽址爽址_欧美性爱区在线国产精品九九九九_亚洲视频黄片无码_久久精品国产成人_国产黄片子视频91sese日韩_中文字幕人妻互换av久久_国产剧情黄色无码视频_黄色在线一级片在线免费看片
    特克斯县 万州区 孟村 乌苏市 嵊州市 宁远县
    任丘市 深泽县 隆尧县 白沙 中宁县 泾川县
    萨迦县 龙里县 大丰市 通渭县 石台县 西林县