???? ???? ???? ??? ????? ??????? ???? 2500 ??? ???????? ????? ??????

??? ?????? ?????? ?????? ??? ????? ??????? ???? 2500 ??? ????? ????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ???? ???? ?????? ???????? ?????? ????????? ????????. ?? ????? ??? ?????? ????? ????? ????? ??????? ??? ????? ??????? ????????? ?? ?????? ????? ?????? ??????????????? ?????? ??????. ????? ??????? ?????? ??? ????? ??????? ????????? ??????? ??? ????? ??????? ??? ???? ??????? ?????? ???????? ?????. ???? ?????? ????? ??????? ???????? ?? ????? ??? ?????? ?????? ??????? ?? ??????? ????????? ???????? ?????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ?????? ?? ?????? ??????? ??????? ?????? ?????? ??? ????? ??????? ???? 2500 ??? ??? ???? ???????. ?? ????? ??????? ????? ??????? ??????? ???? ??????? ?????? ????? ????? ????? ?????? ???? ???????? ?? ?? ???? ????? ?????? ???? ???????? ????? ?? ?????? ?? ????????? ??? ??? ?????? ?????? ??? ?????? ????? ??????????? ????? ???????? ????. ???? ????? Shijiazhuang Deye Piping Industries Co., Ltd. ????? ?????? ?????? ??? ?????? ?????? ?????? ??? ????? ??????? ???? 2500 ??? ???? ????? ????? ????????? ???????? ???????