???? ??? Cf8m ???? ?????? ?????? ?? ?????? ???? ?????

???? ????? CF8M ?????? ?? ???? Shijiazhuang Deye Piping Industry Co.,Ltd. ?? ???? ???? ?????? ?????? ?????? ??????? ????? ?? ?????????. ????? ?? ??????? ??????? ????? CF8M ??????? ?? ????? ???? ????? ??? ????? ????? ????? ???? ?????? ?????? ?? ????? ????????? ???? ?????? ?????? ?????? ???????? ??? ???? ????? CF8M ????? ????????? ?? ????? ????????? ??? ?? ??? ????? ?????? ??????? ??????????. ??????? ??????? ????? ?? ???. ????? ?????? ?????? ?????? ???????? ??? ?????? ?????????? ??????? ???????? ?????????? ????????? ???? ????? ???? ????? CF8M ????? ????? ????????? ??? ???? ?????? ??????? ???????? ??????????. ???? ?????? ????????? ?? ?????? ????? ?? ???? ??????? ??? ????? ?????? ???? ????? ????? ?????? ?? ???????. ????? ???? CF8M ?????? ?????? ????? ?????? ????? ????? ??????? ?????? ???? ????? CF8M ?????? ????? ??? ???????? ??????? ???????. ???? ??? ????? ?????? ?????? ?? ???? ??? ?????? CF8M ????? ??? ???? ????? ????? ????????? ??????