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??? ????? ?? ?????? ???? ????? ??? ???????? ?????? ?? ???? HDPE ?? ????? ?? ???: ??? ???? DN200-DN1200 ? ???? ???? SN8 / SN10 / SN12.5 ? ?? ????????? ??? ? ????? ???? ? ???? ??? ? ??? ? ??? ???? ??????? ? ???? ?????. ???????? ?? ???? ???? ??????? ? ??????? ?? ????? ????? ???? ? ??? ? ?? ???? ??????? ?????? ??????.
