Details：
1)REF No.:ITG-D 80 (AS THE SIZE )
2)Size:80*10M,Ø102*10M,Ø127*10M,Ø152*10M,Ø160*10M,Ø203*10M,
       Ø254*10M,Ø305*10M,Ø315*10M,Ø350*10M,Ø185*11M;
3)Structure:out face:2 Aluminum+2 pet+22KG fiber,inner,2 Aluminum+2 Pet;
         or out face:1 Aluminum+1 Pet +6KG fiber,inner,1 Aluminum+1Pet;
4)Use:Ventilation system,Help for reducing heat & cool loss and prevent condensation；