000
003060000a22001330004500
001
EST
003
669.15 / B21
004
M
006
m
100
_a
Becker, O. M.
245
_a
High-speed steel : the development nature, treatment and use
650
_a
<ACEROS><ALEACIONES DEL HIERRO>
999
_c
6695
_d
6695