Product name: steel fire door frame, hollow metal door frame, fire rated door frame, fire proof door frame Standard: US standard Accessories: Hinge Rein, Lock box. Size: Customized Certificate: FM, WH 45mins, 90mins, 180mins Jamb depth; customized, US standard Material: 1.4mm, 1.5mm, 1.9mm, 2.0mm, CRS, galv. Galvanneal steel Frame: Masonry wall, dry wall, Frame knock down frame, welded frame, adjustable frame Paint: primer paint, finished paint, powder coating, heat transfer
