??? A234 WPB: ???? ???? ???????? ????? ?????? ????????

???? ???? ??????????? ??? ??????? ???????? ???????? ??? A234 Wpb ???? ??????? ??????? ??? ???? ???? ?? ????? ???????? ????????. ????? ??? A234 Wpb ???????? ???? ????? ?????? ??????? ??????? ??? ???? ??????? ??????????. ????? ??? ????? ?????? ????? ??? ??????? ?? ????? ???? ??????? ?? ??????? ?? ???? ????????. ????? ?????? ?????? ?????? ?????? ???????? ??????? ????????. ????? ??? A234 Wpb ????????? ???????? ?????? ?????? ?????? ?????? ??????? ????????? ??? ?????? ?????? ?????? ????????? ????????. ?? ????? ??????? ????? ??????? ??????? ???? ?? ??? A234 Wpb ????? ??? ????????? ?????????? ???????. ???? ?????? ?? ????????? ??? ?????? ??? ??? ?????? ?????? ?? ?????? ?????? ????? ????? ??????? ????? ???????? ???? ???????? ????? ??? ????? ???????? ??? Shijiazhuang Deye Piping Industries Co.? Ltd. ??????? ?????? A234 Wpb ???? ?????? ???? ???? ???????? ???????