. .
DIRECTUM
NetSchool
, ­ . &#
11.00.00 , (: 11.02.09
()
: , ,
1: –
,
Cr-Mn-Mo-Ti
1:
- : - - . ; - ; - ; - ""
: = 56 + 0,9Y; : C= 47 + 0,72Y. , 21%