???? Wnrf ?????? ?????? - ?????? ????? ?????? ?????? ???????

??? WNRF (??? ?????? ???????) ?? ??? ???? ?? ????? ????????? ?? ?????? ????? ?????? ??????????? ???????????????. ???? ???? ??????????? ??? ?????? ???????? ???????? ?????? ?????? ????? ?????? ?? ??? WNRF ???????? ??????? ?????? ?? ??????? ????????. ??? WNRF ?????? ??? ?????? ?? ???? ?????? ??? ??????? ???????? ???????? ??????? ????? ???????? ????????? ??? ???? ????? ?????? ??????? ?????? ??????. ??? ????? ?????? ????? ??? ???? ??? ???????? ????????? ???????? ??????? ??? ?????? ?????? ??????? ?? ????? ????????. ???? ????? ????? ??????? ???? WNRF ?????? ??? ?????? ???????? ??? ???????? ??? ???? ??????? ???? ?? ??????. ??? ?????? ?????? ???????? ??? ?????? ?????? ????????? ??????? ????????. ???????? ??? ???? ?????? ????? ????? ???? WNRF ????? ????? ???????? ??????? ???????? ?????? ???? Shijiazhuang Deye Piping Industry Co.? Ltd. ?????? ?????? ?? ?????? ?????? ????? ????? ??????? ??? ?????? ?????? ?????? ????? ????????? ?? ????????