W4
M1
W1 W2
W3
W4
Fig 23
W1
W2
W1
W2
W3
AA
O1/O2
the connected shape of steel top panel
-19-
Step12
W1x2
W2x2
W3x2
W4x
2
AAx16
X12
X4
12. Assemble the Small Top Panels (W1, W2, W3) in sequence, fix them on the Long Bar-Small Top
(O1/O2), then install the Small Top Panel (W4),attach on the Small Short Top Bar (O), as per Fig 23.
AA
W4
O