一级毛片儿免费观看午夜,在线播放一级毛片免费视频,久久久久精品国产一级毛片

  • 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.

  • 日本韩国亚洲综合日韩欧美国产,一级免费不卡视频,一级毛片国产完整视频颜射吃精,国产在线一级人成小视频,99re8精品视频在线播放2,国产色情又大又粗又黄的电影,一级黄免费色视频,特A特一级黄片性交兔费看,国产精品久久久久久一级毛片 亚洲一区欧美成人,日本三级视频免费在线观看,一级毛片全部免费播放国内,成人免费无码大片A毛片,视频一区中文字幕日韩专区,亚洲欧美日韩高清在线播放,免费国产国语一级黄片,一级黄片毛片视频免费的,一级毛片国产真人永久在线 一级a人成视频免费观看,日韩欧美中老年妇女一级片视频,国产一级婬片A片AAA毛片久久,日本理伦片午夜理伦片,午夜无码国产理论在线,国产成人精品一区二三区韩国,一级成人特黄毛片免费看,一级毛片黄片在线免费观看,一级性片特黄免费网 免费看一级黄色片日逼,黄色A头一级视频,日本精品视频中文字幕日韩一区 ,国产精品扒开腿做爽爽爽,国外中文字幕无码视频,中日精品无码一本二本三本,久久黄色一级视频,特级一级全黄毛片免费,一级av无码毛片免费播放 欧美黄片视频一级,一级毛片黄色视频免费看,久久久久国产一级毛片高清版按摩,美女一级毛片在线不卡观看视频,男女激情内射免费av,亚洲一区二区三区播放在线,一级黄片视频老师,一级特黄性做受大片a61,一级a性做视频黄a免费看 麻婆豆传媒一区二区三区,99久久国产精品一区二区三区,久久精品国产AV一区二区三区,韩国一级黄片毛片久久,国产激情怍爱视频在线观看,国模国产双人无码视频,久久久久久精品精品免费,久久特级一级黄片,一级毛片久久久久久久哟哟
    武清区 襄汾县 平远县 如东县 湄潭县 湖南省
    南安市 泰宁县 泾源县 丹棱县 门头沟区 哈尔滨市
    苏尼特左旗 明星 无为县 泌阳县 安吉县 天全县