???? ??????? C83600: ?????? ????? ?????? ?????? ????????? ???????

???? ??????? C83600 ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?? ???? ???? ?????? ?????? ???? ??????? ????? ?? ????????? ????????. ????? ?? ???? ??????? C83600 ?????? ???? ???? ??????? ??? ?????? ?????? ??????? ??? ????? ??????? ????????? ?? ????? ??????. ????? ??? ?????? ?????? ??? ???? ???? ?????? ????? ??????? ?? ??????? ????? ???? ???? ????? ?????? ???? ?????? ?????? ????. ?? ????? ?????? ????? ????? ?????? ??????? ????? ?????? ?????? ?????? ???????? ??? ?????? ??????? ?????? ???? ????? ?????? ??????? ????????? ??? ???? ??????? C83600 ?????? ??????? ????????? ?? ?????? ??? ?????? ?????? ????????? ?????????? ?????? ??????? ???????? ?????? ?????? (HVAC). ??? ?? ?????? ?????? ???? ???? ????? ????? ??????? ??? ????? ???? ?????? ?? ??? ??????? ??????? ???????? ????????? ?? ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ???????? ????? ?????? ???? ???? ????????? ???????