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  
聚酯纖維吸音板:聲學工程,吸音板 廠房降噪
| 詳細信息  
關鍵字:降噪,隔音,吸音,吸聲,聲學,吸音板
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: 亚洲无毛片| 久久99中文字幕伊人| 国产福利精品在线| 在线国产欧美| 亚洲~首页~原始| 国产视频日本| 国产精品久久久久影院| 婷婷在线网| 一区二区三区在线播放| 日韩免费一级片| 欧美一级毛片在线看视频| 黄色三级视频片| 国产亚洲高清不卡在线观看| 亚洲区精品| 久久国产精品-国产精品| 国产极品视频| 99久久免费午夜国产精品 | 日韩 国产 欧美 精品 在线 | 久久精品首页| 尤物综合| 91桃子| 日韩亚洲成a人片在线观看| 欧美1区2区3区| 国产精品综合一区二区三区| 国产精品爽爽影院在线| 久久精品免看国产| 欧美日韩免费大片| 色综合加勒比| 亚洲 另类色区 欧美日韩| 一级免费毛片| 久久www免费人成_看片高清| 亚洲精品在线视频| 自拍国内| 欧美性活一级视频| 国产精品亚洲va在线观看| 黄网站色在线视频免费观看| 国产福利一区二区麻豆| 国产在线日韩在线| 日韩欧美~中文字幕| 香蕉免费网站| 最新97超级碰碰碰碰久久久久|