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Bullet Resistant Metal Interior Door with Multiple Window Options — Covenant Security Equipment
Hollow Metal Frames
Flush Hollow Metal Door Frame - Drywall | Eliason Doors
Hollow Metal Drywall Frame – Reeb Learning Center
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Commercial Hollow Metal Door and Frame, 3 ft x 7 ft (36 in x 84 in) 18 Gauge Polystyrene Core Door with 16 Gauge Masonry Knock Down Frame, Knob and Deadbolt, Made in USA
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5 Types of Hollow Metal Frame Anchors - Beacon
L.I.F Industries 36 in. x 80 in. Gray Primed Right-Hand Steel Knock Down Door Frame KF53068R - The Home Depot
Types of Metal Door Frames | ehow
Hollow Metal Drywall Frame Installation – Reeb Learning Center