, , . . , : , , . .
: ● – 1 ● – 700-800 ● – 200 ● – 3-4 . ● – 6 ● – 3-4 . . ● – 1,5 . . ● – ● – ● – ( ). ● ().
: . , , ( ), , – (, , ). , , . , . , . , , , . t˚ = 180-200˚ C, 1 . . .