Gaseous Oxygen Vent Arm
By WacoKidd110 @ 2012-08-08 13:08:45
Attached between the 207-foot and 227-foot levels is a retractable arm and vent hood assembly. The arm truss section measures 65 feet long from tower hinge to vent hood hinge. The 13-foot wide vent hood also is known as the "beanie cap."
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