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

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