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

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