????? ???? ???? SWRF ????????? ????

??? ??????? ?????? ???? ???????? ??????? ?????? ????? ??????? ??? SWRF (??? ????? ?????). ??????????? ??? ???????? ???????? ????????. ???? ?????? ??? ?????? ??????? ????? ?????? ???? ???? ?????? ??????? ?????? ??????????? ??? ?? ????? ??? SWRF ?????? ??? ?????? ??????? ????? ????? ??????? ??? ?????? ?????? ???????? ????? ?????? ?????? ??????? ???????. ??? ??????? ???????? ???? ????? ?????? ????? ?????? ?????? ?????? ?????? ????? ????? ?? ???? ??????? ???????? ????????? ?????? ??????? ??????? ????????? Shijiazhuang Deye Piping Industries Co.,Ltd. ????? ?????? ??????? ????? ?? ?????? ?????? ???? ?????????? ??????. ????? ????? SWRF ?????? ??? ?????? ???????? ?????? ?????? ??????? ??????? ????????? ???? ??? ???? ?? ????? ????? ?? ????? ?? ?????????? ?? ??????????????? ??? ????? SWRF ?????? ??? ?? ???????? ??????? ????? ???????? ????? ??. ???? ??? ????? ?????? ?????? ??? ????? ???? ???? Shijiazhuang Deye Piping Industries Co.,Ltd. ???? ?? ???? ???????? ???????? ?????? ?? ?? ??? SWRF ?????? ???