Dn700 28 ???? ??? ?????? ?? ?????? ???? ????? | ????? ??? ???????? ????
???? ????? Dn700 28 ????? ??? ?? ???? ???? ?????? ???? ?? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ???? ????? ??? ???? ????????? ?? ????? ???????? ???????? ????? ??????? ???? ???? 700 ?? ????? ??? 28 ???. ????? ?? ???? ?????? ??? ????? ??????? ????? ?? ????????? ?????? ???? ?????? ?????? ??????? ???????. ?? ????? ???? ????? ?????? ?????? ??????? ?? ????? ???? ???? ??? ???? ?????? ?????? ????? ??????? ????? ????? ????????. ?? ?????? ?????? ??????? ??????? ?????? ?????? ??????? ?? ??????? ?? ????? ????????? ??? ?? ??? ????? ?????? ??????????? ??????? ??????? ?? Shijiazhuang Deye Piping Industry Co., Ltd.? ??? ??????? ?????? ?????? ????? ?????? ???? ???????? ???????. ???????? ???????. ??? ??? ???? Dn700 28Check ????? ??? ?? ???? ???????? ??????? ????????? ???? ???????. ??? ?????? ?????? ???? ??? ?????? ??????? ??? ???? ?? ???????? ??????? ?? ???? ????????
