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??????????? ??? ???????? ???????? ????????. ???? ???? ??? ???? ?????? ???? ?????? ???????? ????? ?????? ??????. ?????? ?????? ????? ?????? ?? ???? ????? ????? ?????? ?????????? ????? ????? ?? ????????? ???????? ????????? ??? ?? ????? ???? ?????? ?????? ????? ???? ???? ??? ????????? ??? ???? ?????? ??????? ????????. ???? ?????? ????? ???????????? ???? ????? ?????? ????? ??? ?? ?????? ???? ???????? ???????? ??? ???????? ???? ????????? PVC? ????? ?? ???? ???? ?????? ???? ????? ?????? ?????? ?????? ????????? ??????? ?????? ???????? ????????. ??? ?? ?????? ????? ????? ?????? ????? ???????? ??? ????? ??????? ????????? ?? ??????? ??????. ?? Shijiazhuang Deye Piping Industries Co.,Ltd.? ??? ??????? ?????? ?????? ????? ?????? ???? ???? ?????? ???????. ?? ?????? ???? ?????? ????? ??? ???? ????? ???????? ??????? ??? ????? ?????? ?????? ????????? ???????? ?????? ??. ???? ??? ????? ?????? ?????? ?? ???? ??????? ????? ??? ????? ???????? ??????