?????? ??????? ??? ??????? ???????? ????? ?????? ????????? ????????
???? ??????? ??????? ??????? ??????? ?????? ?? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?? ???? ???? ?????? ???? ?????? ????????? ???????? ????????? ???????? ???????. ????? ??? ?????? ?????? ????? ?????? ??? ???? ?????? ???? ???????? ???? ????? ???????? ??? ????? ??????? ????????? ?? ?????? ????? ?? ???????? ??? ?? ??? ????? ?????? ??????????? ??????????????? ?????? ??????. ???? ????? ??????? ???? ??? ?????? ?????? ?????? ??????? ????????? ???? ?????? ??? ?? ??????? ?????? ??????. ???? ????? ??? ??????? ????? ??????? ????????? ????? ???? ????? ??????? ??????? ??????? ????? ??????? ???????? ?? ??????? ??? ?????? ?????????? ????? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?????? ??????? ????? ???????? ?????? ???? ???? ???? ?????? ??????? ?????????. ?? ??? ???? ??????? ?? ??????? ??????? ?? ???? ????????? ??? ???? ????? ??????? ???????? ????? ???????? ???????? ???????? ?????? ??
- ??????? A234WPB? ??????? ?????? ANSI? ??????? BW? ??????? ?????? DIN? ?????? ??????? ?????? ????? ????? ??????? ????????? ??????? ?????? ??? ??????? ????? ??? ??????? ??????? ?????? ??????? ????? ??????
- ???? ????? ?? ????? ISO5211
- ???? ??????? ??? C500
- ????? ???? ?????
- ???? ????? ??????
- ???? ??? ?????
- ???? ????? ??????? ?? ????? ????????
- ???? ?????? ?? ??? ?????
- ???? ??????? En558 S13
- ???? ??? API6D