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,發現BUG通過在線問題提交由開發人員確定后,本站將會給予一個月廣告展示機會!
 位置:首頁 -> 產品 -> 環保設備 -> 噪聲處理  
廠房降噪 聚酯纖維吸音板:吸音棉
| 詳細信息  
關鍵字:聲學工程,吸音板,吸音棉,廠房降噪,吸音,隔音
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

 活躍產品   在這顯示|更多 
網站首頁 - 關于我們 - 使用協議 - 免責條款 - 版權隱私 - 網站地圖 - 友情鏈接 - 廣告服務 - 會員服務 - 免費注冊 - 聯系方式
問題請通過在線提問反饋 | 在線客戶QQ:105452034 | 收費會員及廣告咨詢電話13332201705 技術支持:遼寧衡駿節能科技有限公司
Copyright 2007- dbzz.net All Rights Reserved 東北制造網(東北地區唯一制造業網上平臺) 版權所有 遼ICP備2021008091號 遼公網安備21021702000105
為獲得最佳瀏覽效果,建議使用IE7以上,或Firefox7以上瀏覽器
經營性網站
備案信息
百強網站
誠信聯盟
網絡110
報警服務
不良信息
舉報中心
主站蜘蛛池模板: 看最刺激的欧美毛片 | 国产成人做受免费视频 | 91在线视频免费91 | 亚洲一区黄色 | 国内真实迷j下药在线观看 国内真实愉拍系列情侣 | 中国欧美日韩一区二区三区 | 调教套上奶牛榨乳器喷奶水 | 久久亚洲国产高清 | 91青青青青青爽在线 | 国产亚洲蜜芽精品久久 | 久久亚洲在线 | 亚洲经典自拍 | 靠逼久久 | 亚州淫片aaaa视频 | 麻豆网址在线观看 | 999人在线精品播放视频 | 特黄黄三级视频在线观看 | 免费看一级特黄a大片 | 国产精品免费一区二区区 | 美女被网站免费看九色视频 | 亚洲免费视频网站 | 日本欧美成 | 欧美一级免费观看 | 久久国产高清一区二区三区 | 婷婷国产天堂久久综合五月 | 欧美婷婷综合 | 久久综合伊人 | 国产免费高清国产在线视频 | 毛片免费观看 | 国产欧美专区在线观看 | 在线观看国产高清免费不卡黄 | 国产精品真实对白精彩久久 | 一区二区在线观看视频在线 | 99精品一区二区三区 | 青草国产在线观看 | 亚洲国产精品成人午夜在线观看 | 国产精品馆 | 三级黄色免费片 | 99自拍视频在线观看 | 欧美精品99毛片免费高清观看 | 美女美女高清毛片视频 |