???? ?????? ????? ??????? ????? ?????? - ???? ??? ???? ?????? ????!
?????? ?????? ???????? ??????? ????????? ????? ?????? ???????? ?? ???? Shijiazhuang Deye Piping Industry Co., Ltd.. ?? ????? ???????? ??????? ????????? ????? ?????? ???? ????? ????? ????? ????? ?? ?????? ?????? ?? ????????? ????????? ??? ?????? ?? ???? ??????? ????? ??????? ????? ????? ???????? ??????? ????? ?????? ?????? ????????? ??? ???? ??????? ?? ???? ??????? ???????. ???? ???????? ??????? ???? ??????? ?????? ????????? ??????? ????????? ??????? ????? ????????? ??? ?? ????? ????? ?????? ?????? ??????? ???????? ?? ?????? ?? ??????? ?????????? ???????? ??? ???????? ??????? ????????? ?????? ??????? ????? ?? ?????????? ??? ?? ??? ?????? ?????? ?????? ?????? ????????? ?????????? ???????. ??? ????? ?? ???? ?????? ?????? ?????? ??????? ????? ????????? ????? ????? ???? ???? ??????? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?????? ??? ?????? ????? ??????? ????? ?????? ???? ????? ???????? ?????????? ?? ?? ???? ??????
- ???? ???? ?? ????? ???? ?? Bw
- ???? ????? ?????? SS
- API 600 ???? ???????
- ?????? ????? ： ????? ???????: API599 API6D ????? ????: ???? ??? ???? ?????? ANSI B16.10 API6D ????? ??????: ANSI B 16.5 ?????: WCB ?? ????? ???????? ???????: A182F6a
- ???? ???? 4 ???? DN100
- ???? ????? ?????
- API 900 # ???? ?????
- ???? ???????? ????
- ?????? ??????? ????????
- PN25 ????? ???????