免费一级A看片国产,日韩国产一级毛片视频,欧美一级牲交大片

  • 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.

  • 国产大片免费线上观看_香港曰本韩国三级网站_成人欧美日韩精品国产夫妻在线不卡_久久久久久av无码免费看大片_国产成人9l精品午夜_国产品九九久久久国产精品_色欲av综合av在线av_国产欧美成人免费电影在线观看_久久亚洲精品无码av 日韩短片免费视频_国产精品日本不卡一区二区_日韩城人网站视频在线观看_国产免费fuck黄片_亚洲av人人夜夜澡人人_免费播放精品一二三区毛片三_人妻无码第一区二区三区_精品久久99黄色视频_国产免费一区二区三区免费视频 国产精品久久久久久久9999_国产高潮国产高潮久久久_伊人精品视频东京久久免费视_日韩无码高清1区_性黄片视频在线观看浏览_成人网页在线观看_无人在线完整免费高清观看_国产精品成人观看视频网站_精品无码av无码免费专区 丰满少妇被猛男猛烈进入久久_人妻少妇精品中文字幕av蜜桃_国产精品一区在线播放_一区二区三区不卡无码精品_三级片不卡免费亚州AV片在线_亚洲无码网站免费在线观看_精品国际九九九av福利在线观看_性做久久久久久久_一区二区网站日韩精品自拍偷 亚洲欧美精品AAAAAA片_国产美女黄色网站一区二区三区免费_亚洲高清无码在线一区_一区二区三区无遮无挡在线看_亚洲精品尤物av在线观看任我爽_天天干天天爽天天午夜福利无码视频_黄片成人国产在线观看_精品无码人妻一区二区免费蜜桃_韩国精品一区二区免费电影 久久碰国产一区二区三区_婷婷99月丁香99青草婷婷视频_在线观看毛片黄色网站_久久久高清毛片一区_亚洲砖区区免费日韩人妻在线播放_天堂av无码大芭蕉伊人av不卡_最新无码网站在线观看_色色色性性性午夜福利二区_日韩在线观看免费网站视频
    青州市 惠州市 祁连县 宣威市 德惠市 枝江市
    四平市 汤原县 巩义市 尼玛县 云梦县 朝阳市
    大渡口区 铁力市 张家口市 三穗县 徐汇区 峡江县