???? ????? T 40mesh/80mesh ?????? ??? ????? ????

????? T 40mesh/80mesh ????? ?? Shijiazhuang Deye Piping Industries Co.,Ltd. ?? ?? ???? ?????? ?????? ?? ?????? ?????? ??????? ?? ????? ???????. ?? ????? ????? T ??? ??????? ???????? ??????? ??? ??????? ???? ????????? ??? ???? ????? ??? ???? ??????? ????? ??????? ????? ???????? ????????? ?????? ????? T ????? ?? ?? ?? ?????? 40mesh ? 80mesh? ??? ???? ??????? ?????? ??????? ??????? ????????. ???? ?????? ?? ???? ?????? ??? ???? ?????? ?????? ?????? ??????? ???????. ??????? ?????? ????? ????? ???? ?? ????? ?????? ???????? ????? ???? ?????? ??????? ???? ???? ??????? ??????? ???? ?? ???????? ?? ?????? ?????? ?? ????? ?????? ?? ???????? ?????????? ?? ????????? ???????? ??????? ??? ????? T 40mesh/80mesh ?????? ??? ???? ??????? ????????? ???? ?????. ?? ???????? ??????? ???? ???????? Shijiazhuang Deye Piping Industries Co.,Ltd. ?? ????? ??????? ?? ????? ????? ??????? ????? ??????