8

8 :
.
.
.
.
.
8 , .
.
.



ϡ ߡ ֡ .
ѡ ɡ ȡ .
ϡ ֡ ɡ .



ɡ ߡ FPO PVC ɡ .
ɡ .



40% .
40%
40% 40% .