???? ??? ASTM A216 WCB - ?????? ?????? ?????? ??? ????? CE

???? ??? ?????? ASTM A216 WCB? ???? ????? ???? ??????????? ??? ??????? ???????? ????????? ?? ???? ????? ????? ?????? ???? ?????? ????????? ????????. ??? ?????? ????? ?? ??????? ????????? ??? ????? ????????? ?? ????? ????? ???????? ?????????. ????? ???? ??? ?????? ASTM A216 WCB ?????????? ????????? ??? ???? ??????? ??????? ????? ?????? ?????? ?? ????????. ???? ????? ?????? ??????? ???????? ??? ????? ??????? ????? ?? ????????? ??? ?? ??? ????? ??????? ????????? ??????????? ?????? ??????? ??????? ??????. ???? ????? ??????? ?????? ???????? ???? ???? ??? ?????? ??? ????? ????? ???? ????? ???????? ???????. ????? ?????? ???????? ??? ?????? ?????? ????????? ??????? ?????? ?????????. ????? ???? ??????????? ??? ??????? ???????? ???????? ?????? ???? ????? ?????? ???????? ????????? ????????? ????? ???? ??? ?????? ASTM A216 WCB ?????? ??? ???????? ??????? ??????????.