????? ??? ???? ????? ?????? ??????? ?????? | ????? ????!

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