???? ?????? ??????? ??????? ????? ???????? OEM ??????? ???????

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