This double lined solid kraft case board features ultra-rigid construction with double-layer kraft composite technology. Available in multiple thickness specifications including 1400um and 1700um, with standard sheet size of 750mm×1100mm and full custom cutting support. Engineered for outstanding hardness, stiffness, and compression resistance for applications requiring strong structural support.

• Double Lined Composite Structure: Dual kraft layers bonded tightly for far higher rigidity than single-layer cardboard, resistant to bending and deformation under heavy pressure
• Diversified Thickness Selection: Multiple thickness grades available to match light, medium and heavy rigid product production requirements
• Flexible Custom Size Cutting: Standard 750×1100mm sheets in stock for fast delivery; arbitrary custom length and width cutting available
• Excellent Processing Compatibility: Uniform internal fiber structure with smooth flat surface, perfect for die-cutting, folding, laminating and gluing without cracking
• Strong Pressure & Impact Resistance: Good load-bearing capacity protects internal items when used as backing pads, long-term use without warping
• Stable Batch Quality: Consistent thickness and hardness across all production batches with uniform kraft color appearance

• Office stationery: thick file folders, document folders, hard file covers, portfolio folders
• Industrial protective packaging: cargo backing pads, product isolation liner boards, shockproof partition sheets
• Rigid paper crafts: hard book backing boards, gift box inner supports, display stand base boards
• Logistics transportation: pallet separating rigid sheets, hardware scratch-proof protective boards

• Professional double-lined solid kraft board production line with mature composite bonding technology
• Precise thickness control equipment producing multiple thickness grades in mass quantity
• Large cutting workshop supporting both small custom sizes and large bulk standard sheet orders
• Strict hardness, thickness and flatness inspection before shipment
• Export-grade moisture-proof pallet packaging for long-distance transportation
• Factory direct supply with competitive pricing and stable production capacity