????? ??? ??????: ?????? ????? ?????? ?????? ???????

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