SECTION 11311

1. WACO Type HD/SO grating. 2. Aluminum alloy 6061-T6. 3. Bearing bar depths as noted on the drawings. 4. All banded openings and grating perimeters. C. Vertical Ladders: 1. Modified OSHA-approved extension ladder(s). 2. Ladder lengths as detailed and indicated on the drawings. 3. Safety-orange color plastic coating for top ends of ladder side ... ................
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