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i want to Know the #R-Value of sandwich panel

hi there is a company of Sandwich panel fabrication, they gave me a "change of acoustic conductivity absorption loss against frequency chart". i want to know what is the R- value of that sandwich panel material? any convertion or Chart that i get the R-Value? this is the link of the Chart "http://www.iraqinet.net/2/arihan_group/fff.gif" thanks

i want to Know the #R-Value of sandwich panel

hi there is a company of Sandwich panel fabrication, they gave me a "change of acoustic conductivity absorption loss against frequency chart". i want to know what is the R- value of that sandwich panel material? any convertion or Chart that i get the R-Value? this is the link of the Chart "http://www.iraqinet.net/2/arihan_group/fff.gif" thanks