???? ????? ??????????? ??????? ?? ????? ?????????? ?????? ?? ????? ???? ?? ??? ?????? ??????????? ??? ?? ???. ??? ???? ????????? ????? ?? ???? ???????????? ????? ?????? ????????? ?????? ??????. ???? ???????????: ????? ????? ?? ?????? ??? ??????? ?? ????? ????|????? ??? ????????? ?? ???? ???? ?????

The process of the TAC was to prepare and publish a confined quantity of special and alloy steel specs, calculated to go over The full of the necessities on the combating expert services and industrial usage. Publications of BS970 and BS971 in 1941 offered specifics of the new TAC grades. The BS971

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