4405-75 33      Hot-rolled and wrought tool steel strips. Dimensions . , . N 2.      09 7700 1976-01-01 18 1975 . N 691 1980 . 01.01 1986 . N 3-93 , ( N 56, 1993 .). - .          1980 . N 1, 1980 . ( N 2 1981 .) N 2, 06.06.88 N 1637 01.12.88 N 9, 1988 N 2 N 9, 1988      , .( , . N 2).1. .1.