???? ????? ???? 250WOG ?????? ?? ?????? ???? ????? | ????? ????!

??? ????? ???????? ???????? ?????? ?? ???????? ???? ??????? 250WOG ???? ?????? ?? ???? Shijiazhuang Deye Piping Idndustrys Co.,Ltd? ??????? ????? ???? ????? ????? ??????? ???????? ??? ?? ????? ???? ??????? ??? ?????? ??? ???? ????? ?? ?? ??????? ??????. ?? ????? ??? 250WOG? ???? ???? ?????? ????? ??????? ?? ?????? ??????? ???????? ???????? ?? ????? ???????? ?????? ??? ??? ????? ?? ???? ????? ?????? ?????? ????? ???? ??????? ??? ????? ????? ????? ?????? ???? ???????? ????. ?? ??? ?????? ??????? ?????? ??????? ?????? ????? ?????? ??????? ??????? ????? ?? ????????? ????????? ???? ??? ???? ?? ????? ????? ?????? ?? ?????? ?????????? ?? ?????? ??????? ??? ???? ??????? 250WOG ????? ??? ???? ?????? ?????????? ???? ??????? ?????? ??? ??? ??????? ??????? ?? ?? Shijiazhuang Deye Piping Idndustrys Co.,Ltd. ????? ???????? ???? ???????? ????? ??? ??????? ?????? ?????? ??????? ???? ?????? ????????. ???? ??? ????? ?????? ?????? ?? ???? ??????? 250WOG ????? ??? ?????? ??? ???? ?? ???? ???????