国内精品久久久久影院蜜芽丨jizz性欧美丰满丨91重口变态丨风间由美在线观看丨久久综合成人丨色狠狠av北条麻妃丨午夜性色吃奶添下面69影院丨精品国产一区二区三区吸毒丨日本中文字幕影院丨日本久热丨青青草狠狠爱丨久久er99国产精品免费丨成人性生交大免费看丨欧美日韩在线精品一区二区丨中文在线免费观看入口丨日韩作爱视频丨色玖玖丨麻豆文化传媒精品一区丨天天色天天艹丨97caoporn国产免费人人

Air distribution static pressure box

● Selected Baosteel fingerprint-resistant steel plate: high-quality steel, baking varnish process, beautiful and durable.

● Even distribution of air volume: part of the dynamic pressure can be converted into static pressure, allowing the wind to travel a longer distance.

● Simplify the piping system: reduce dynamic pressure loss and allow flexible matching of air ducts to improve the overall performance of the ventilation system.

● Super noise reduction: embedded with environmentally friendly sound-absorbing and heat-insulating materials to reduce wind noise and lower energy loss.

● Flexible plug-type design: pipes can be added or reduced according to on-site installation needs to adapt to installation in a variety of scenarios.