, .
...
. , 2-5 , . .
, , . 5-7 , , , -, - , , . (6...12° ) , .
, - , . .
, , . 3:1, - 5:1. 1% .
, 0,5-3 . 70° . .
24...25° (5-7% ). 1,5-2 . - 24...25° 90%. .
, , 10...15° . 10-15 . 10 .
( ). , .
, . 500 . 0...2° 3 .