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