???? ??? ???? ????? ??? ????? ???? 150 ????? ?????? ?????????

?????? ??????? 150 ????? ?? ???? Shijiazhuang Deye Piping Industries Co.,Ltd. ?? ???? ????? ?????? ???????? ????????. ?? ????? ??? ?????? ??????? ???? ?????? ??????? ???????? ?????? ??????? ???????? ?? ??? ???????? ??????? ?? ????? ????????? ??? ????? ?? ???? ???? ?????? ????? ??????? ?????? ????? ??? ?? ?????? ??????? ???? ???? ???? 150 ????? ???? ?????? ?????? ??????? ??? ???? ???? ?????? ??????? ????? ?? ????????? ????????. ??? ??? ???? ????? ????? ????? ?????? ????? ???????? ??? ???? ????? ??????? ?? ?? ??????? ??????? ?? ????? ??????? ???????? ??????? ????????? ???? ????? ??????? ???? ???? ???? 150 ????? ???? ?????? ?? ??? ??????? ?????? ????? ???? ??? ????? ????????. ???? ?? ???????? ?? ??????? ??????? ?? ?????? ???? ????? ?????? ?? ???????? ??????????? ?? ????? ??????? ???????? ?????? ?????? (HVAC)? ??? ?????? ???????? ?????? ??? ???? ????? ???????? ???????? ???? ?????? ???????? 150 ????? ?? ???? Shijiazhuang Deye Piping Industries Co.,Ltd. ?????? ??? ?????? ??????? ???????? ??????? ?????? ???????? ?????? ??