???? ??????? AWWAC504: ???? ???? ?????? ?????? ?????? ?????????

?? ???? ??????? AWWAC504 ???? ????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?? ???? ????? ????? ?????? ???? ?????? ????????? ????????. ?? ????? ??? ?????? ???????? ???? ????? ?????? ????? ??????? ??????? ?????????? ?? ????? ?????? ???? ???? ????????? ??? ???? ????? ??? ???? ????? ??????? ??? ?? ????? ???? ??????? ??? ????? ???? ??????? ?????? ??????. ??? ?????? ?? ?????? AWWA C504? ??? ???? ??? ???? ????????? ??????? ?????? ?????????? ????????? ?? ???????? ?????? ?????? ????? ??????? ???? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ???? ??????? AWWAC504 ?????? ?????? ?? ???? ????? ???????? ???? ?????? ?? ???? ??????? ?? ??????? ????????

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???? ???? ?????? ?? ???? ???? ??? BRZ-BV-01

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2-???? ???? DSS F51 ????? ?? NPT

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F4 PN16 ???? ???? ?? ???? ?? ?????? ????? (BY-02)

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