Ваш кошик порожній!
..
L=420, D? =55, D? =54, D? =45..
d = 90 (6*10) 4*12 6*12 (200*150)d= 14 250*180..
z-12D-82..
40 , 23 ,..
L=250, D? =55, D? =66, 21 , 32 ..
Z=54 ,20 ..