?????? ?????? ???? ?????: ???? ????? ???????
?? ?????? ?????? ???? ????? ???? ????? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?? ???? ???? ?????? ???? ?????? ??????? ??????? ????? ??????. ?? ????? ??? ?????? ???????? ???? ????? ?????? ??? ??????? ??????? ????? ???????? ???????? ?????? ???????? ??? ???? ??????? ??????? ??????? ?? ?? ???? ??????? ???????? ??? ?? ?????? ?????? ???? ????? ????? ??? ????? ??????? ????? ?? ???????? ??? ?? ??? ????? ?????? ???????????????. ?????? ??????? ????? ?? ???. ??? ???? ?????? ?????? ???? ???? ???????? ????????? ??? ???? ?????? ?????? ?????? ???????? ?? ????? ??? ?????? ?????? ???? ?????? ??? ?????? ?????? ???? ????? ????? ??? ?????? ??????? ???????? ?????? ??? ???? ??????? ??????? ????? ???? ???????. ???????? ??? ???? ????? ???????? ????????? ??????? ????? ????????? ????? ????? ?????? ???????? ??????? ???? ?????? ?????? ???? ????? ?? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ???????? ????? ?????? ???? ??????? ????? ?????? ??????????
- ?????? ??????? ????????
- ???? ??????? ?? ??????? ????????
- ???? ????? 1 ????
- ????? ???????? vlave
- A335 P22 Pipe
- ???? ??? ??????
- API594 ???? ????????
- 8 ?????
- ?????? ????? ： ????? ???????: API599 API6D ????? ????: ???? ??? ???? ?????? ANSI B16.10 API6D ????? ??????: ANSI B 16.5 ?????: WCB ?? ????? ???????? ???????: A182F6a
- ????? ??????