|
|
|
|
|
|
20° |
0,83 0,86 / |
|
11 13% |
20, 4 |
25 50 |
|
|
|
4 + 50 |
|
+ 5 |
20 |
1 3 |
CEN TS 14754-1 |
> 80% 72 |
|
|
: , . |