???? ????? ??????? Dn400 16: ???? ??? ?????? ??????? ???? ???? ?????????

?? ???? Dn400 16 Globe ???? ????? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?? ???? ????? ???? ?????? ?????? ???? ?????? ?????? ?????? ?? ????????? ????????. ????? ??? ?????? ?????? ???? ???? 400 ?? ????? ??? ???? 16 ???? ??? ????? ??????? ??????? ?? ??????? ??? ????? ?????? ????? ??????? ???????? ??? ????? ?? ???? ????? ??????? ??????? ??? ?? ????? ??? ?????? ?????? ????? ????? ???? ?????. ?????? ?? ??????? ??????. ?? ????? ?????? ???? ????? ????? ?? ?????? ?? ?????? ???????? ??????? ??? ????? ?????? ??????? ?????? ???? ??????? ???????? ??????? ?? ???? ????????? ????? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?????? ????? ????? ?????? ?????? ????? ??????? ????? Dn400 16 Globe ??? ????????. ?? ??????? ??? ?????? ?????????? ????????? ??? ??? ?????? ????? ???? ??? ???? ?????? ?????. ???? ?? ???????? ?? ????? ?????????????? ?? ????? ????? ?????? ?? ????? ?????? ??????? ??? ??? ?????? ?????? ???? ????? ?????????? ????? ?????