Dn800 32 ???? ??? ?????? ?????? ?? ?????? ???? ????? | ????? ????

?? ???? ??? ?????? Dn800 32Swing ?? ???? ???? ?????? ?? ?????? ??????? ?????? Shijiazhuang Deye Piping Industry Co.,Ltd. ?? ????? ???? ??? ??????? ??? ?????? ???????? ???????? ??????? ???? ???? ????? 800 ??. ?? ????? ?????? ?????? ???? ???? ?????? ?? ?????? ?? ???? ??????? ???????? ??????? ?? ??????? ????????? ?????? ???? ??? ?????? Dn800 32Swing ????? ????? ??? ?? ??? ??? ??? ???? ?? ????? ???????? ???? ???? ?????? ????? ???? ???? . ?? ????? ?????? ???? ?????? ?????? ?????? ????? ???????? ?? ????? ???????? ??? ????? ?????? ??????? ????? ????? ?????? ???????? ????????? ???? ????? ????? ?????? ??????? ??????? ??????? ?????? ???????? ??? ???? ??? ?????? Dn800 32Swing ?? ??????????? Deye ???????? ??????? ????????. ???? ???? ??????? ????????? ???????? ?? ?????? ??? ?????????????? ?????? ?????? ?????? ?????? ??????? ??????. ???? ??????? ?????? ?? ????? ????? ???? ????? ??? ?????? ?????????? ????????? ?????????? ?????????