???? ????? ?? ??????? ???????? A216 ????? ?????

???? ??????? ??????? ?? ????? ???????? A216 ?? ???? ????? ????? ?? ????? ???? ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ??? ?? ????? ???? ??????? ??? ???? ?? ??????? ????????? ??? ????? ??????? ?????? ????????? ?? ???????? ??? ????? ?????? ???????????????. ??????? ??????? ????? ???? ??????? ??????? ?? ????? ???????? A216 ????? ????? ??????? ?????? ??????? ??????? ??????. ??? ???? ?????? ?????? ?? ???? ????? ????? ?????? 90 ????? ??? ???? ??????? ?????? ??????? ?? ??? ??????. ?? ????? ?????? ????? ????? ?? ???? ?????? ???????? ?????? ??? ?????? ?????? ?????? ??????? ??? ?????? ??????? ??????? ????????. ??? ?? ??????? ????? ????? ?????? ????? ?????? ????? ??? ?????? ????? ?????? ?????????? ??? ????? ?????? ?? ??????? ??????? ?????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ?????? ?????? ?? ?????? ??????? ???????? ????????? ????????? A216. ??? ???? Valve ?????? ????? ??? ??????? ?? ?????? ???? ???????