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

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