???? ??? ?????? ??????? ????????? ????? ?????? - ????? ???? ?????? ??? ???? ?????? ????

???? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ?? ?????? ??????? ????????? ????? ?????? ??????? ????? ????? ?? ?? ????? ?????????. ?? ????? ?????? ??????? ????????? ?????? ??? ?????? ?????? ?? ???? ?????? ?? ????? ?? ?? ????????. ??? ????? ???????? ?? ???? ??????? ????? ??????? ????? ???? ?????? ?????? ??????? ??? ?????? ?????? ????????? ?? ????? ?????? ?????? ?????? ?????? ????? ??????? ?????????? ???????? ?????? ?????? ??????? ????????? ????? ?????? ?????? ???????? ????? ?????? ????? ????????? ??????? ????????. ??? ?? ??????? ?????? ????? ???? ?????? ???? ??? ???? ?????? ?????? ???????? ??? ????? ??????. ???? ?????? ?????? ???????? ??????? ?? ????? ?????? ??????? ????????? ?????? ??? ????? ?????? ?????? ?????? ???? ????? ?? Shijiazhuang Deye Piping Industries Co., Ltd.? ??? ??????? ?????? ?????? ????? ?????? ???? ???? ?????? ???????. ???? ??? ????? ?????? ?????? ?? ?????? ??????? ????????? ????? ???? ???? ?? ???? ??????