青青青国产91蜜臀一区二区_国产日韩精品情侣AV_国产在线91国语_日本黄a在线网站大全_A在线视频这里只有精品_亚洲丁香五月亚洲欧美_天堂欧美城网站网址_影视自拍高清无码_粉嫩嫩国模无码大尺度视频_国产亚洲欧美日韩在线爱豆

Chip muffler series

T701-6 impedance composite muffler

T701-6 impedance composite muffler

Purpose and characteristics:


The resistance of the impedance composite muffler is composed of the sudden change of the inner section of the pipe and the function of the expansion chamber between the inner and outer pipes, and the resistance is composed of the resistive sound absorber.


explain:


At rated air volume, the low-frequency noise reduction is 10-20db (a), the intermediate frequency noise reduction is 20-38db (a), and the high-frequency noise reduction is 26-39db (a).

 

 

Purpose and characteristics:


The resistance of the impedance composite muffler is composed of the sudden change of the inner section of the pipe and the function of the expansion chamber between the inner and outer pipes, and the resistance is composed of the resistive sound absorber.


explain:


At rated air volume, the low-frequency noise reduction is 10-20db (a), the intermediate frequency noise reduction is 20-38db (a), and the high-frequency noise reduction is 26-39db (a).

Hot recommendation

Wdxf-b flat swirl tuyere

Wdxf-b flat swirl...

View details
Watcd-f temperature sensing circular diffuser

Watcd-f temperatu...

View details
Wdbf-c floor diffuser

Wdbf-c floor diff...

View details
主站蜘蛛池模板: 亚洲男人天堂网址 | 国语自产偷拍在线观看91大神 | 欧美人V在线视频 | 国产精品久久久久久久婷婷软件 | 波多野结衣无码高清 | 久久久久亚洲AV永久无码蜜芽 | 国产精品精品久久久久久甜蜜软件 | 国精产品久拍自产视频 | 近親相姦中出C親子中文字幕小说 | 国产睡熟迷奷系列精品视频 | 性感狐不妖精品午夜日韩福利在线 | 蜜桃人妻Ⅴ一v二精品视频 大地资源宾利影视大全套餐 | 无码成人精品区一级毛片 | 日婬片A片AAA毛片在线少妇 | 91传媒在线观看网站 | 成人无码18 在线观看 | 狠狠色综合7777久夜色撩人ⅰ | 亚洲黄色中文字幕视屏 | www.国产性交hb.com | 91丝袜在线观看 | 嫩BBB搡BBBB搡BBBB视频 | 99re免费精品视频66 | 国产污在线观看完整版 | 91无码人妻精品1国产一区二区 | 亚洲AV无码乱码A片无码沈樵 | 红桃视频国产精品 | 女人高潮特黄aaaaa毛片 | 影音先锋资源在线 | 国产精品偷乱一区二区三区 | 无码国产一区二区精品 | 亚洲第一网站视频 | 亚洲av无码乱码国产 | 搡老女人老熟女91老熟女综合网 | 日韩精品百度一区 | 精品人妻少妇嫩草AV无码专区 | 久热精品视频在线观看免费 | 波多野结衣无码观看 | 2019中文在线观看 | 国产一级婬片A片免费手机版宅男 | 一区二区三区无码视频 | 2024精品农村在线观看 |