Tra My A3 5.0cm Landscape Heavy-Duty Lever Arch File Binder (Blue):
- Technical Specifications: Standard A3 landscape format (297 x 420 mm), spine width 5.0cm (holds ~250 sheets of A3 technical drawings), heavy-duty lever arch mechanism.
- Rigid Reinforced Board with Blue Moisture-Proof Cover: Heavy-gauge laminated fiberboard resists warping and bending under the weight of large blueprints.
- Powerful Steel Lever Arch Mechanism: Smooth opening lever locks heavy punched oversized documents securely without paper sagging.
- Metal Edge Guards & Spine Thumb Ring: Reinforced steel corners prevent shelf wear while spine ring allows easy pulling from tall plan shelving.
- Applications: Architectural blueprints, civil engineering CAD drawings, electrical schematics, and factory plant layout archiving.
