??? ????? ?????? ???? 1500 ??? ????????? ???????
?? ?????? ???? ???? ????? 1500 ???? ????? ??? ??????? ?????? ???? Shijiazhuang Deye Piping Industries Co., Ltd.? ?? ???? ???? ?????? ???? ????????? ???????? ???????. ?????? ?? ???? ?????? ??? ??????? ????? ??? ???? ???? ????? ????? ??????? ???????? ??? ?????? ?????? ????????? ?? ?????? ????? ?? ???????? ??? ????? ?????? ??????????? ???????????????? ??? ???????? ?????? ?????? ?????? ?????? ????? ????????? ??????? ?????? ???????? ????????. ??? ?? ??????? ???? ????? ?????? ?????? ???? ????? ??? ???? ????? ??????? ?????? ????? ?????? ???????? ??? ????? ???????? ???????????? ?? ????? ?????? ???? ???? ????? 1500 ??? ????? ?????? ??????? ????????? ??? ???? ????? ?????? ?????. ???????? ?? Shijiazhuang Deye Piping Industries Co., Ltd.? ??? ??????? ?????? ?????? ????? ??????? ??????? ?????????? ???? ???? ????? 1500 ??? ???? ????????. ??? ????? ??????? ????? ??????? ??????? ???? ???????? ?? ????? ?? ??????? ????? ????????