国产精油按摩一级毛片,国产一国产一级A√片免费,一级做a爰性色毛片免费官方

  • 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.

  • 青青国产娱乐网无码高清啪啦视频_激情视频网站欧美_欧美午夜精品久久久久久浪潮_亚洲国产精久久久久久久91_亚洲电影AAAav无码一区久久_成人做爰免费视频免费看_日韩精品无码一本二本三本_精产国品一二三区资源视频一区二区_久久国产成人免费精品 同学的妺妺2在线观看_久久久久99人妻一区二区三区_久久久久无码精品国产AV蜜桃_黄色电影免费观看_精品国内自产拍在线观看视频_日本妇人成熟a片免费现看_欧美黑人狂躁日本妞免费视频_亚洲中文字幕无码高清_色成人鲁一鲁黄色禁免费观看 日本一本免费一区二区_国产精品久久久久久无码_久久久无吗区毛片_亚洲免费专区日韩热在线视频_免费视频在线看黄_国产毛片AAA一区二区三区视频_免费的一区二区三区在线视频_无码少妇一区二区_黄色电影免费看毛片 无码AV中文一区国产强奸三级簧片_黄片视频高清在线免费看_黄色毛片基地日韩av专区片_国产黄色视频在线_免费大黄视频大吊精品视频_一级毛片永久免费视频_久久久久久久久久_哪里有免费黄片国产_黄片免费视频2019 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 精品亚洲成a人无码成a_日韩在线视频2019_欧美日韩在线观看视频首页_亚洲三级无码三级在线观看_最近2019中文字幕MV免费看_天天搞天天干丁香五月天俺也_久久电影二区91久久看片_国产精品无码专区一区_免费1级a做爰片观看
    正蓝旗 上虞市 松江区 武穴市 吉木萨尔县 克拉玛依市
    张家港市 萍乡市 闽清县 密山市 句容市 安泽县
    修文县 岳西县 黄梅县 浮梁县 丹东市 沂源县