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| Customization: | Available |
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| Type: | Report Cover & Spine Bar |
| Material: | PP |
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| Attribute Category | Specific Parameters/Features |
| Core Functions | - Basic function: Secures loose sheets with clips or rings for loose-leaf storage and flipping; allows easy addition, removal, or replacement of pages - Additional functions: Some have label bars (for categorization), tightness adjustment devices (adapting to different paper thicknesses), zipper/snap closures (dust and moisture proof), and built-in folders (for layered storage) |
| Size Specifications | - Size options: A4 (210×297mm), A5 (148×210mm), A6 (105×148mm), etc., matching corresponding paper sizes - Thickness/capacity: Classified by ring diameter, commonly 10mm (about 100 sheets of 80gsm paper), 20mm (about 200 sheets), 30mm (about 300 sheets), up to 50mm (about 500 sheets) - Weight: Approximately 100-500g depending on size and material |
| Structure & Material | - Binding methods: Round rings (3-6 rings, 6 rings common), D-rings (larger capacity, flatter pages), lever clips (can fix non-hole paper) - Material: Covers are mostly PP plastic (lightweight, waterproof), leather (good texture, durable), metal (industrial-grade, strong load-bearing); rings/clips are galvanized steel (rust-proof) |
| Application Scenarios | - Office scenarios: Dynamic organization of meeting minutes, project proposals, customer data - Study scenarios: Student notes, error notebooks, review materials (can add content at any time) - Daily scenarios: Personalized storage of family bills, handwritten journals, travel guides - Professional scenarios: Designer sketches, engineer drawings (large-size models) |
| Safety & Durability | - Safety design: Rounded edges (scratch-proof), metal parts without burrs, no small parts in children's models - Durability: PP material resistant to -20ºC-60ºC, not easy to deform; metal rings with rust-proof treatment, opening and closing ≥10,000 times; leather models are wear-resistant and dirt-resistant, usable for a long time |
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