???? ???? WCB ???? ?????? ????? ????? | ????? ????

???? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?????? ????? WCB ????? ?????? ????? ?????? ???? ????? ????? ?? ????? ????????? ????????. ?? ????? ???????? ??????? WCB ?????? ??? ???? ??????? ???????? ???? ?????? ??????? ??? ???????? ??????? ?????? ?? ???? WCB (??????? ???????? ???????) ????? ??????? ????? ???? ?????? ?????? ??????? ????? ?????? ????? ???????. ???? ?????? ?????? ?? ???? ????? ?????? ?????? ???????? ?????? ?? ???? ????????? ?????? ?????? ????? WCB ?????? ??? ?? ?????? ?????? ?? ??????? ??????? ????? ?????? ????????? ??????? ?????? ????????. ??? ?? ??????? ?????? ????? ???? ?????? ??? ????? ?????? ??? ?????? ???? ????????? ????????? ???? ??? ??? ????????? ?? ?????? ????? ?????? ?? ?????????????? ?? ?????? ??????? ??? ?????? ????? WCB ?????? ??? ???? ????? ???????? ??????????. ?? ???????? ??????? ???? ???????? ????? ?????? ?? Shijiazhuang Deye Piping Industry Co., Ltd. ??????? ????? ?????? WCB ??????? ?????? ????????? ????????