?????? ?????? ????? ?????? ????????? ????????

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