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

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: 欧美.成人.综合在线| 国产亚洲福利精品一区二区| a久久久久一级毛片护士免费| 亚洲欧美日韩在线播放| 最近在线更新中文字幕3| 欧美久久超级碰碰碰二区三区| 国产精品综合网| 青草国产视频| 亚洲精品一区二区三区香蕉在线看| 成人亚洲视频| 欧美三级手机在线| 国产免费久久精品久久久| 搞黄网站在线观看| 国产女人精品性视频| 男女配种超爽免费视频| 久久精品视频在线观看榴莲视频| 欧美毛片aaaaa片久久久久| 精品在线视频免费| 国产福利91精品一区二区三区| 免费精品国产日韩热久久| 午夜精品视频在线看| 最新国产午夜精品视频成人| 九九视频国产| 日韩久久久精品中文字幕| 亚洲一区不卡视频| 在线免费观看黄视频| 国产精品v在线播放观看| 最刺激黄a大片老师| a级精品九九九大片免费看| 国产精品青草久久久久婷婷| 老子影院午夜伦不卡亚洲| 欧美嗯啊| 欧美人成在线观看网站高清| 丝袜乱小说| 午夜影院亚洲| 亚洲精品国产精品乱码不97| 亚洲综合美腿丝国产一区| 在线 看片| 中国日韩欧美中文日韩欧美色| 91视频国产精品| 91宅男|