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