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???? ????? ?? ?????? ?????? ?? ???? Shijiazhuang Deye Piping Industries Co.,Ltd. ?? ???? ????? ???? ?????? ???? ?????? ???? ????? ????? ????? ?? ?????? ?? ????????? ????????. ????? ??? ?????? ????? PEEK (???? ???? ???? ?????)? ????? ???? ?????? ????????? ?????? ?????? ??????? ???????? ???????? ??? ????? ??????? ??????? ??????? ?????? ???? Peek ?????? ?????? ?????? ???????? ??? ???????? ??????? ?????? ???????? . ??? ????? ???? ????? ???? ???? ??????? ?????? ???????? ?????. ???????? ??? ???? ?? ????? ?????? ?????? ???????? ?? ?????? ???? ?????? ????? ???? ?????? ??????? ?????????? ???????. ???? ?? ???????? ?? ???????? ?????????? ?? ????? ?????? ?? ????? ?? ????????? ????????? ??? ?????? ?????? ????? Peek ???? ????? ?????? ??????. ???? ????? ?????? ????? ?????? ????????? ???? ??? ?????? ?????? ??????? ?? ?????? ???? ???? ????? ??? ????? ???? ?????? ?? ??? ??????? ????????? ??????? ?????? ??