???? ???? ????? ?? ???? ?????? ???? ?? ????. ??????? PVC ????? ????? ??? ????? ??????? ??????, ????? ????? ????? ???? . ?? ?????? ?????? , ?????? ??? ???? ???? ???? ???? . ??? ?????? PVC ????????? , ?????? ?? ?-PVC ????? ???? ????? . ???? ?????? ? PVC - ??????? ????? ???? ????? ?????? ????, ??? ? ?????? ?? ????? ??? ????????, ???? ????? ???????