av激情亚洲男人的天堂

谷騰環保網

北京綠創環保團體

存眷度:4530 活潑度:3 谷騰指數:4603

LC隔聲系列產物

人氣:32333 宣布時候:2009-03-12 10:20

關頭詞:隔聲門/窗

產物型號:

操縱范疇:噪聲振動節制

產物價錢:面議

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型號 倍頻程中間頻次/Hz 均勻隔聲量R
125 250 500 1000 2000 4000
隔聲量/dB
LC-MB-1 13 12 17 23 29 33 21
LC-MB-2 17 18 23 28 32 35 25
LC-MB-3 16.8 22 25.9 30.7 34.7 32.2 30
LC-MB-4 31 34 36 37 41 33 35
LC-MB-5 36 44 59 57 60 61 51
LC-GL 25 30 37 43 47 50 41
LC-GX 28 40 42 46 51 54 45

 


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