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????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ?????? ?????? ?? ??????? ?????? SW? ?????? ?????? ?????? ????????. ?? ????? ??? ?????? ?????? ?????? ??????? ??? ???? ??? ?? ????????? ??? ???? ?? ?????? ????? ????? ??????? ??????? ??? ?? ????? ???? ????? ?? ??????? ?????? SW ????? ??? ???? ????? ????? ??????? ????????? ???????? ????????. ???? ?????? ?? ??????? ??????? ???? ??? ?????? ?? ???? ?????? ????? ?????? ????? ???? ???? ???????? ???????? ??? ???? ?? ????? ???? SW ?????? ?? ??????? ?????? ????? ??? ??????? ?? ???? ????? ????? ??????? ???????? ??? ????? ??????? ??????? ????? ?? ???????? ??? ?? ??? ????? ??????? ????? ??????????????? ???????? ?? ????? ?????? ?????? SW Full Bore ?? Shijiazhuang Deye ????? ????? ?????? ??????? ????? ??????? ??????? ??? ???? ???? ??????? ???? ???? ???? ?????. ???? ?????? ?????? ??????? ???? ???? ???????? ?????? ??? ???? SW Full Bore Ball Valve ????? ??? ?? ?????? ?????? ????????? ???? ???????? ????