久久国产自偷自免费一区100-久久国产自偷自偷免-久久国产综合精品欧美-久久国内精品自在自线400部o-久久国内精品自在自线观看

您在使用過程,發(fā)現(xiàn)BUG通過在線問題提交由開發(fā)人員確定后,本站將會給予一個月廣告展示機(jī)會!
 位置:首頁 -> 產(chǎn)品 -> 環(huán)保設(shè)備 -> 噪聲處理  
聚酯纖維吸音板:吸聲體,吸音板 廠房降噪
| 詳細(xì)信息  
關(guān)鍵字:降噪,隔音,吸音,吸聲,聲學(xué),隔聲
dbzz

1, polyester fiber is sound-absorbing board product is mainly used in indoor (metope, ceiling)

2, polyester fiber is sound-absorbing board is a porous material, magnified three hundred times as much to talk, we see the polyester fiber is sound-absorbing board is porous structure, it is because these cavity, polyester fiber is sound-absorbing board can sound-absorbing (voice after polyester fiber sound-absorbing panels in cavity formed by sound energy into backflow, heat).

3, decoration plasticity, use common wall paper knife, it can cut.

4, polyester fiber materials, what is polyester fiber (PET), polyester fiber material is oil chemical materials, commonly known as the polyester, is in the state of wire drawing, color after pressing into boards.

5, has sound-absorbing, fire prevention, environmental protection, noise reduction, moistureproof, characteristics, sound-absorbing, fire prevention, environmental protection for instructions

(1) polyester fiber is sound-absorbing board sound-absorbing mainly reflects in sound-absorbing noise reduction coefficient, according to GB/T20247-2006, average noise reduction coefficient (NRC) of 0.85 above, average absorption coefficient (100 HZ ac-4 KHZ) was 0.72. In the high frequency band, for better effect.

(2) polyester fiber is sound-absorbing board for national fire protection GB8624 B1 level (1997) national fire protection has four grade level A: doesn't burn. (like stone, steel, etc) B1 level: flame retardant. (mainly refers to fire left the fire spread speed slow) B2 class: flammable (as long as it's wood, etc.) B3 level: flammable (alcohol, fuel)

(3) environmental protection level is divided into: E0 level, E1, E2 class

Polyester fiber is sound-absorbing board far accord with a country (the gb18580-2001) E1, formaldehyde to release a quantity to < 0.1 (mg/l), index more than 1.5 mg/requirements (l) , which can be directly used for indoor

Fields: home cinema, hotel, studio, the music room, KTV, bars, theaters, meeting rooms, multi-function hall, the indoor stadium, etc

 活躍產(chǎn)品   在這顯示|更多 
網(wǎng)站首頁 - 關(guān)于我們 - 使用協(xié)議 - 免責(zé)條款 - 版權(quán)隱私 - 網(wǎng)站地圖 - 友情鏈接 - 廣告服務(wù) - 會員服務(wù) - 免費(fèi)注冊 - 聯(lián)系方式
問題請通過在線提問反饋 | 在線客戶QQ:105452034 | 收費(fèi)會員及廣告咨詢電話13332201705 技術(shù)支持:遼寧衡駿節(jié)能科技有限公司
Copyright 2007- dbzz.net All Rights Reserved 東北制造網(wǎng)(東北地區(qū)唯一制造業(yè)網(wǎng)上平臺) 版權(quán)所有 遼ICP備2021008091號 遼公網(wǎng)安備21021702000105
為獲得最佳瀏覽效果,建議使用IE7以上,或Firefox7以上瀏覽器
經(jīng)營性網(wǎng)站
備案信息
百強(qiáng)網(wǎng)站
誠信聯(lián)盟
網(wǎng)絡(luò)110
報警服務(wù)
不良信息
舉報中心
主站蜘蛛池模板: 免费国产综合视频在线看| 精品一区二区三区的国产在线观看| 久久黄色影院| 亚洲欧洲无码一区二区三区| 国产小视频免费在线观看| 特级毛片免费| 99综合| 精品久久电影| 日本老熟妇毛茸茸| 亚洲综合欧美综合| www.成人网| 久久要| 日韩久久精品一区二区三区| 成人伦理影院| 免费观看www视频| 欧美剧场成人精品午夜| 国产偷v国产偷v亚洲偷v| 娇喘嗯嗯~轻点啊视频福利 | 久久久久久国产视频| 白桃花在线| 成人天堂入口网站| 免费一区二区视频| 欧美a级片免费看| 欧洲女人性开放视频在线观看| 国产欧美成人xxx视频| 国产精品美女视频| 能看av的网址| 黄色看片网址| 韩国中文字幕在线观看| 97一区二区三区四区久久| 国产成人小视频| 国产福利视频| 国产欧美日韩免费一区二区| 久久精品人人做人人爽| 久久久久99精品成人片三人毛片| 欧美日韩亚洲m码色帝国| 日日摸夜夜夜夜夜添| 污污短视频| 色婷婷六月丁香在线观看| 香蕉久久夜色精品国产尤物| 亚洲精品网址|