"2-WAY BLOW,PATTERN NO. 20,1.500 IN. BTWN VANES,REMOVABLE CORE,FRAME MATERIAL ALUMINUM,SHUTTER MATL AND TYPE ALUMINUM VANE,NONADJUSTABLE VANE,O/A H 6 INS,O/A W 6 INS"
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CRITICALITY CODE JUSTIFICATION
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GENERAL CHARACTERISTICS ITEM DESCRIPTION
"2-WAY BLOW,PATTERN NO. 20,1.500 IN. BTWN VANES,REMOVABLE CORE,FRAME MATERIAL ALUMINUM,SHUTTER MATL AND TYPE ALUMINUM VANE,NONADJUSTABLE VANE,O/A H 6 INS,O/A W 6 INS"