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??? ????? ????? ????? ???? ???????? ?????? ?? ?? ???? ?????? ??????? ????? ?????? ?????. ????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ?????? ?? ?????? ??????? ?????? ??????? ??? ?? ??? ?????? 16 ???? ?8 ???? ?6 ???? ?????? ???????? ???????? ??? ?? ????? ?????? ?????? ??????? ????? ????? ?????? ????? ????? ?????? ?? ?????? ????? ?? ?????????? ????? ?? ????????? ???????? ???? ????????? ????????. ???? ?????? ?????? ???????? ???????? ???? ?????? ??????? ????? ??????? ????? ???????? ??? ????? ??????? ??????? ???? ???? ?? ???? ??????? ????????? ???? ??? ????? ??? ???? ????? ???? 16 ???? ??? ?????? ???? ?? ???? ????? ???? 8 ???? ?? 6 ???? ?????? ??????? ?????? ?????? ???? ???????? ?????? ?????????? ???? ???????. ???? ?? ???????? ??????? ???? ???????? ??? Shijiazhuang Deye Piping Industries Co., Ltd. ?? ????? ??????? ?? ????? ???????? ???? ??????? ?????? ??. ???? ??? ????? ?????? ?????? ?? ???????? ???? ?????? ??? ?????? ???? ???????? ?????? ??