000
00266nam a2200109Ia 4500
008
220201s1975 xx 000 0 eng d
100
_a
ISI:1762-1974
245
0
_a
Designation of steel : Based on letter symbols
260
_b
ISI
_c
1975
300
_a
11
942
_2
ddc
999
_c
80063
_d
80063