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:吸聲體,吸音板 廠房降噪
| 詳細信息  
關鍵字:降噪,隔音,吸音,吸聲,聲學,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

 活躍產品   在這顯示|更多 
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
  •  
關鍵字:
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: 五月天综合婷婷 | 免费视频精品 | 欧美一区二区三区黄色 | 欧美洲精品亚洲精品中文字幕 | 国产亚洲美女精品久久久2020 | 日本黄色三级网站 | 一区二区视频在线观看高清视频在线 | 1024在线观看免费播放 | 亚洲国产精品自产在线播放 | 尤物国产| 国产免费一区二区三区免费视频 | 国内精品自在自线在免费 | 最色网在线观看 | 丁香婷婷亚洲六月综合色 | 亚州综合| 亚洲精品不卡久久久久久 | 制服丝袜中文在线 | 在线青草| 好黄好猛好爽好痛的视频 | 特级黄| 涩涩视频www在线观看入口 | 亚洲特级黄色片 | 在线视频你懂得 | 视频在线一区二区 | 嫩草视频在线看 | 欧美xx毛片免费看 | 成人做爰全过程免费看网站 | 久久视频精品36线视频在线观看 | 久久久久久尹人网香蕉 | 黄色特级一级片 | 国产麻豆高清在线观看 | 色婷婷综合激情视频免费看 | 凹凸69堂国产成人精品视频 | 免费看大片的 | 国产成人精品男人免费 | 在线免费看黄色 | 亚洲精品欧美精品日韩精品 | 欧美一级毛片欧美一级成人毛片 | 成人伊人| 韩国19禁主播裸免费福利 | 麻豆传媒官方入口 |