免费的黄片国产一级www,一级黄片在线国产播放,自慰一级免费观看

  • 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.

  • 中文字幕无码成人免费视频_国产9999在线观看_一区二区韩国免费电影_国产精品黄片应用_亚洲精品又粗又大又爽a片_杨幂一区二区三区免费_国内精品国产成人国产三级_在线精品无码高清_国产高清无码1区 三片韩国日本欧美在线播放_最新黄片在线免费观看_中文在线ずっと好きだった_亚洲人妻工厂97一區二區_中文字幕亚洲精品女同一页_久久精品影院区二区三区_九九九热在线伊人久操激情_人成视频在线免费观看_欧美国产一区二区三区 欧美AAA大片视频一二区_久久久久国色av免费观看_美洲av在线极品探花在线_国产精品特级无码免费视频_国产大路黄片毛片_一区二区毛片电影_国产成人AV在线免播放观看新_亚洲高清无码黄色视频_狠狠色丁香婷婷第六色孕妇 国内精品久久久久影院一蜜桃_国产免费一区二区三区最新6_国产av日韩一区_免费激情视频网站_色综合久久中文字幕无码_欧美日本韩国精品一区二区三区_又大又粗欧美黑人aaaaa片_黄片视频播放在线看_精品久久九九无码久久久久久 嫖客探花AV天天性综合网_韩国国产一区三区_国产成人a∨激情视频厨房_色婷婷综合中文久久一本_无码精品人成在线观看_国产成人一区二区三区在线播放_另类天堂2020午夜福利成人自慰_青青草原精品99久久精品66_国产一区二区三区无码电影 国产AV无码专区亚洲AV软件_天天躁夜夜躁狠狠躁2021_国产黄骗免费专区日韩无码视频流出_亚洲欧美另类日本人人澡_在线观看中文字幕一区二区_日韩av福利日韩性爱AV_警花新婚尝又大又粗_区久久AAA片69亚洲_亚洲视频在线观看不卡
    江川县 明光市 北票市 西和县 通河县 广饶县
    华坪县 昭苏县 波密县 长武县 合水县 西林县
    甘德县 古蔺县 鄢陵县 黄平县 民县 江达县