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???? Shijiazhuang Deye Piping Industry Co., Ltd. ?????? ?? ????? ?????? ?????? Bb ????? ?????? ?????? ????????? ????????. ?? ????? ?????? Bb ?????? ??? ?????? ???? ????? ?? ?????? ??? ?????? ????????? ?? ?????? ????? ?? ????????? ??? ?? ??? ????? ?????? ??????????????? ??????? ??????. ?????? Bb ?????? ??? ?????? ?? ???? ????? ?????? ???? ????? ????????? ???? ?????. ?????? ?????? ??????????. ??? ???? ?????? ????? ?? ?????? Bb? ??? ?? ??? ???????? ???????? ??????? ???????? ????????? ???????? ?????? ?????????? ??????? ????????. ?? ????? ???????? ?????? ?????? ??????? ????? ??????? ?????? ??????? ??????? ???????

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MSS SP-43 ????? A ?????? ??? ?????? ??? ?????? ?????? ?????? PF-S-15

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????? ????? ??????? ????? PN16 DJ-1003

???????? ??????? BV-DBB-02F

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???? LCC ??????? ??? ????? SS304 ?????? ?????. 14, 2019 ?????? ?????? ????? ????? ???????? ??? ???? ??????? ???????? ?? ????? ?????????????? ??? ???? ??????? ????????? ??...