???? ???? GGG40 ???? ?????? ?????? ?????? ?? ??????
?? ???? ?????? GGG40 ???? ????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?? ???? ???? ?????? ?????? ???? ?????? ????????? ????????. ???? ?????? ??? ????? ?? ???? GGG40 ???????? ??? ???? ???? ???? ????? ??????? ??????? ?? ??????? ??????? ???????? ?????? ?????? ???????? ???? ???? ?????? GGG40 ????? ??? ??????? ??????? ???????? ?????. ???? ?????? ?????? ?? ???? ?????? ?? ???? ???????? ????????? ???????? ???????? ??????? ??? ?????? ?????? ??????? ??????? ????? ?????. ?? Shijiazhuang Deye Piping Industries Co., Ltd.? ???? ???????? ???? ??????? ????? ?????? ?????? ???????? ???? ????? ???? ????????. ???? ?????? GGG40 ????? ??? ??? ????????? ??? ???? ????? ???? ???????? ???? ?????? ?????? ???? ??? ????? ??? ?????? ???? ?????? ????? ?????? ?? ????? ?????? ???? ????? ????? ?? ????????? ???????? ??????? ??? ???? ?????? GGG40 ????? ??? ?? ?????? ???????. ?? ?? ???? ???????? ???????? ????? ?????? ???? ?????? ?? ??????? ????????
- ???? ????? ????? ???????
- ??????? A234WPB? ??????? ?????? ANSI? ??????? BW? ??????? ?????? DIN? ?????? ??????? ?????? ????? ????? ??????? ????????? ??????? ?????? ??? ??????? ????? ??? ??????? ??????? ?????? ??????? ????? ??????
- ???? ????? API
- ?????? ????? ： ????? ???????: API599 API6D ????? ????: ???? ??? ???? ?????? ANSI B16.10 API6D ????? ??????: ANSI B 16.5 ?????: WCB ?? ????? ???????? ???????: A182F6a
- ???? ????? F51
- ?????? ??????? ??????? ??????? EPDM
- ???? ??? ?????
- ???? ????? ????? ?????
- ???? ??? ????? ?????? ???????
- ???? ?????? ?? ?????