???? ??? ????? ???? ?????? ?????? ?? ?????? ???? ????? | ????? ????
????? ???? ????? ??????? ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ?????? ???? ?????? ?????? ?? ???? ????????? ???? ??? ?????? ????? ??????? ??????? ?????? ????????? ????????. ???? ???? ????? ???????? ??????? ?? ???? ????? ??????? ??????? ?????? ?????? -??? ???? ????. ???? ?????? ?????? ????? ??????? ????????? ??? ????? ?????? ?????? ??? ???? ??????? ???? ??????? ????? ??????????? ???????? ??????? ???? ??? ?????? ????? ?????? ?? ?????? ??????? ??? ???? ?? ????? ??????? ???????? ????? ??????? ?????. ?? ????? Duo Check Valve ?????? ???? ???? ?????? ??? ?? ???? ??????? ??????? ????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ?????? ?????? ????? ??????? ??? ??? Duo Check Valve ????????. ??????? ?????? ????? ?????? ??????? ????? ??????? ???? ??? ?????? ???? ????? ??? ???? ???? ?????? ?????. ?? ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ???? ???? ???????? ????? ????????? ???????? ?????? ??
- ???? ????? ???????
- ??????? ?????? ?????? ??????? ???????? ?????
- API 602 ???? ???????
- ???? ???? ?? ??????? ??????? ???? 2 ????
- ???? ??????? ??????? ??????
- ????? ??? ????. ? ????? ????? ???? ???? ??????. ? ???? ???? ?????? ?????? ????? ?????? ??????. ? ???? ????? ?? ??????? ?????? ???????? ???? ??????. ? ??? ????? ????????. ? ??????? ?????? ??????
- Dn80 3 ???? ???? ???????
- ???? ????? ????? ?? WRAS
- ???? ?????
- ???? ????? ?????