???? ??? B62 ???? ?????? ?????? ?? ?????? ???? ????? | ????? ????

???? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ??? B62 ????? ?????? ????? ?? ??????? ???? ?????? ?????? ????? ??????? ????? ?????? ?????? ???????? ????????. ????? ?????? ????? ??? ?????? ??????? ????? ?? ?????????? ??? ?? ??? ??????? ?????? ????? ?????? ????? ?????? ????????? ??????????. ?????? ????? B62 ?????? ??? ?????? ?? ???? ????? ??????? ??????? ??? ???? ????????? ??????? ??? ????? ??????. ??? ?????? ?????? ?????? ??????? ??? ?????? ????????? ??????? ???????? ????????. ?? ????? ???????? ?????? ??????? ????????? ?????? ????? ??????? ??????? ????????? ?? ??????? ?????? ?????? ????????? ???????? ???? ?????? ????? B62 ????? ???????? ??????? ??? ?? ????????? ??? ???? ???? ?? ????? ???????? ?? ???? ????? ??????. ???? ??????? ???????? ??? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ??? ?????? ????? ?????? ????? ????? ??????. ???? ??? ????? ?????? ?????? ?? ?????? ????? B62 ???? ???? ?? ???? ????? ???????? ????