???? ????? ???? ?????? ???? 900 ??? ????????? ????????

???? ??????? 900 ??? ?? ???? Shijiazhuang Deye Piping Idndustrys Co.,Ltd. ?? ???? ????? ???? ?????? ?????? ???? ????? ???? ?? ?????? ??????. ?? ????? ???? ??????? ??? ?????? ??????? ?? ??????? ????? ?????? ????? ???????? ??? ????? ??????? ??????? ????? ?? ????????? ?? ?????? ????? ?????? ???????????????? ??? ????? ?? ???? ????? ?????? ???? ?????? ??? ???? ????? ?????? ????? ???? ??????? ??? ???? ????? -???? ????? ????? ???????? ?????. ????? ?????? ?????? ???? ????? ??? ???? ?????? ??????? ????????? ?? ???? ??? ???? 900 ???? ??? ???? ??????? ??? ???? ??? ???? ???? ??????? ???????? ??? ???? ???? ??????? ?????? ?? ?????? ???????? ??????. ??? ????? ?????? ?????? ?????? ?????? ???????? ????? ???????? ????????? ???? ???? ???? ??????? 900 ??? ?? Shijiazhuang Deye Piping Idndustrys Co.,Ltd. ?? ?? ???? ??????? ????? ?? ??? ??????? ???????? ????? ??????? ??? ???? ????? ???????? ??????????