???? ???? ?????? ??? Fb Ball Valve: ?????? ????? ?????? ??????

????? ?????? ?????? Fb ???? ?????? ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd.. ?? ????? ??? ?????? ?????? ???????? ?????? ????????? ????????? ??? ???? ?????? ??????? ??????? ?? ??????? ??? ????? ?????? ????? ????? ??????? ????? ?????? ?????? Fb ????? ??? ?????? ??????? ???????? ??? ????? ??????. ????? ?????? ???? ????? ???? ??? ???? ?? ????? ?????? ???????. ???? ??????? ????? ?????? ???????? ?????? ?????? ?????? ????? ?????? ?? ??????? ?????? ???? ????? Fb ????? ??? ?? ?????? ?? ??????? ???????? ????? ?????? ????????? ????????. ???? ??? ????? ????? ?????? ??????? ?? ??????????????? ?? ?????? ??????? ?? ????? ?? ????????? ??? ??? ?????? ?? ?? ????? ??????????? ??????? ???????? ?? Shijiazhuang Deye Piping Industries Co., Ltd.? ??? ??????? ?????? ?????? ?? ?????? ?????? ?????? ????????. ?? ???? ????? Fb ????? ???? ????? ?????? ?? ???????? ?????? ????????? ????????. ???? ??? ????? ?????? ?????? ??? ???? Fb Ball Valve ????? ??? ???? ???? ?? ???? ????