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3
Align the short inner frame (B) with the brackets (C) on both ends to the long inner
frames (A) together. Fasten them together with M5 x 10 screws (K). Follow the
illustrations to install the other short side and make the inner frame a square.
A
A
Align the center support bar (J) to the screw holes on the upper and lower inner
4
frames. Fasten the center support bar (J) with M4 x 4 screws (L).
5
The inner frame is a square now. Leave it aside and free the space for screen material
installation.
B
B
A
J
L
A
7
K
L
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