国产在线一级a免费,一级一片视频免费播放,免费一级黄片播放

  • 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.

  • 一二三四日本中文在线_色婷婷欧美色色强暴电影一区二区_欧美精品二区丁香五月激情天_亚洲AV永久无码国产精品综合_久久久人成影片一区二区三区_久久综合九色综合欧美狠狠_日韩欧美视频在线观看第一页_在线免费看AAAAAA级黄片_无码视频二区三区四区五区 黄片毛片在线观看_一区二区欧美韩国_久久精品中文字幕第一页_三生有幸遇见你免费观看_国产精品久久久久久福利_免费看国产成年无码AV片_中文无码极品在线_亚洲日韩国产理论片_欧美综合免费在线视频 开心五激情久久嫩草影院网址亚洲_在线观看国产精品一区二区不卡_免费看毛片无码在线看_亚洲av无码专区在线播放中文_日韩乱码人妻无码中文字幕久久_亚洲成a人无码亚洲成a无码_精品国产偷窥在线一区二区_青草国产黄色视频片_视频在线观看免费日韩欧美 在线观看人成视频久网免费_日本精品久久国产短视频一区_无套内谢少妇毛片a片免费_日本污视频免费劲爆欧美第一页_凹凸久久人人澡超碰凹凸_欧美与日韩亚洲精品中文字幕_免费在线观看国产特级黄片_亚洲狠艹艹视频欧美日韩亚洲视频_亚洲国产精品一区二区成人片 全国成人大全视频在线看_波多野结衣色视频亚洲中文第一字幕_天天综合天天操亚洲色女性爱视频_韩国电影一区二区免费_美女色黄视频成人在线免费看_亚洲日本va中文字幕_亚洲av中文无码乱人伦在线r▽_狠狠肏91亚洲无码_久久国产精品免费一区 久色性爱在线视频91亚洲精品观看_成人欧美尽粗二区三区av_亚洲一区AV在线观看无码_丁香青青五月天国产VS在线观看_日韩迷奸中文字幕在线视频_欧美第一页视频在线视频播放_精品三区视频免费版_一区二区三区理论片_天天日狠狠干三级片观看91
    九寨沟县 桂林市 章丘市 乌兰浩特市 元谋县 施秉县
    宜都市 井研县 中方县 徐闻县 临沭县 土默特右旗
    神池县 蒲江县 诸暨市 鲁甸县 襄垣县 湖北省