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5、 DN 250 , 50 (500 ) 500 (5 ) , . . . , - . , , 54824. : ) ; b) , , ; c) .2. : 730-194 . 548242011 ( 88-1:2007) - . 1. 50 548232011 2 9.03074 . . 9.90885 . - . 6172006 . 326275 . 554287 - -. 635781 . 1281580 , 0,1 20,0 ( 1 200 /). . 1296967 . 1376486 - . . 1376586 - . , . 1418295 160932004 . . . - 17
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