??? Saf2205: ??? ????? ?????? ?????? ????????? ????????

????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ?????? Saf2205 ????? ?????? ?????? ????????? ????????. ?? ?????? Saf2205 ?????? ?? ??????? ??????? ????? ???????? ????? ???? ?????? ?????? ?????? ???? ?????? ??? ?????? ?????? ????????? ?? ??????? ???????? ??? ?? ????? ??? ?????? ?????? ???????? ??????? ????? ????????? ?? ????? ?????? ??????????? ????????. ????????. ??? ?????? ?????? ?????? ???????? ??? ?????? ????????? ??????? ????????? ???? ????? ?????? Saf2205 ?????? ??? ???? ????? ????????? ???? ????? ????? ????????? ????????. ?? ???? ????????? ??????? ???????? ????? ?????? ?????? ?????? ?????? ????? ???? ?????? ?????? ??????? ??????? ?? ?????? ?????? ???? ????????? ???????? ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd.? ??? ??????? ?? ???????? ??????? ???? ??????? ?????? ?????? ?????? ??????? ????????. ???? ??? ????? ?????? ?????? ?? ?????? Saf2205 ???? ???? ?? ???? ??????? ????????