?????? ????? ????? ?????? ?? ???? ???????? PTFE ????? ?????? ????? ????

????? ?????? ??????? ??? ????? Teflon PTFE ???? ?????? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ???? ??????? ??????? ?????? ?? ???? ??????? ?? ????????? ???????? ????????. ?? ????? ??? ???????? ???? Teflon PTFE? ??? ???? ?????? ?????? ?????? ?????? ??????? ???????? ??????? ??????????. ?? ????? ?????? ??????? ????? ????? ?????? ????? ??????? ??????? ??? ????? ??????. ???? ?????? ????????? ?? ?????? ????? ?? ????????? ??? ?? ??? ???????? ?????????? ??????? ?????? ???????? ?????? ??????? ??????????? ????? ??? Teflon PTFE ????? ?????? ????????? ??? ???? ?? ????? ?????? ????? ??????? ?????. ???????? ??? ???? ?? ????? ???????? ?????? ??????? ????????? ??? ?????? ?????? ?????? ?? ??? ??????? ??????? ??????? ???? ????? ??? ????? ????????? ?????? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?????? ?????? ????? ?????? ?????? ??????? ??????? ??? ???? ???? ??????? ??? ???? ?????? ?????? ????????? ?????? ?? ??????? ?????? ???