""

...

"" =60 , L=200 c, =250
3500
" 500*250"

...

"" =25 , D=52, =80
650
" 520*300"

...

"" =30 , D=52, =92
800
""

...

"" =70 , D=55 , =250
1800
""

...

"" =70 =110 "", ""
5500