????? ?????? ??? RTJ ??????? | ???? ????? ??????? ??????

???? ???? ??????????? ??? ??????? ???????? ???????? ?????? ?? ??????? ?? ??????? RTJ? ??????? ?????? ???? ?????? ?????? ??????? ?? ??? ??????. ????? ??????? RTJ ?????? ???????? ????? ?????? ?????? ??????? ???????? ??? ?????? ?????? ????????? ?? ?????? ????? ?????? ??????????????? ?????? ??????. ????? ??????? RTJ ?????? ??? ???????? ???? ????? ??????? ??? ?????? ?????? ???????? ??? ?????? ?????? ???????? ??????? ????????. ????? ??? ???????? ?????? ????? ?????? ??????? ??????? ??? ???? ????? ????? ???????? ????????. ???? ?????? ??????? ?? ????? ????????? ????? ???? ??????????? ??? ??????? ???????? ???????? ?????? ?????? ????? ?????? ????? ????? ?????????. ??? ???? ??????? ??? ????? ???? RTJ ?????? ??????? ??????? ???????? ??????? ?????? ????? ?????? ?????? ????? ????? ?????????? ???? ???? Shijiazhuang Deye Piping Industries Co.? Ltd. ????? ????????? ?? ???? RTJ ?????? ????? ?? ?????? ??????????