???? ???????: -40 ???? ????? ~ +250 ???? ????? ???? ??????? ??????? | ????? ????????

??????????? ??? ???????? ???????? ????????. ???? ?????? ?????? ????? ?????? ?? ???????? ??????? ????? ????? ??????? ??????. ???????? ????? ??? ????? ?? ????? ????? ?????? ?? -40 ???? ????? ??? +250 ???? ?????? ??? ?????? ?????? ??????? ????? ?? ????????? ????????? ???? ????? ???????? ???? ??????? ?? ???? ????? ????? ?????? ??? ???? ????? ??????? ?????? ??? ?????? ??? ??????. ???? ??? ??? ????????? ?? ????? ????? ??????? ?? ???????? ??????????? ?? ????? ?? ??????? ??? ????? ??????? ???????? ??? ???????? ????? ?????? ?????? ??????? ????????? ?? ???? Shijiazhuang Deye Piping Industries Co.,Ltd.? ??? ??????? ?????? ??????? ????? ?????? ?????? ????????? ???????? ?????? ???. ?? ????? ???????? ????? ?????? ??? ?????? ????????? ??????? ???? ???????? ???? Shijiazhuang Deye Piping Industries Co.,Ltd. ????? ???????? ???????? ??? ????? ??????? ??????? ?????? ????? ?? ?????? ??????????