???? ??? ?????? | ???? ?????? ???? ????

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