
4mm Grey Paper Carton Cardboard Uncoated Kappa Board. Flexible Customization: Size and thickness can be customized to meet specific project requirements. Strict Quality Control: Features 100% visual inspection and fully automatic computer-controlled production lines. Wide Application Range: Suitable for packaging boxes, books, photo frames, puzzles, and advertising boards. Multiple Certifications: Holds ISO9001, ISO14000, SGS, ROHS, and MSDS certificates for quality assurance. Die-Cutting Service: Offers precise die-cutting for A3/A4 sizes with perfect edges, saving customer costs. Competitive Pricing: Provides reasonable prices with consistent quality for global market demands. Free Sample Availability: Free samples are available for quality verification, with freight collected. Reliable Packaging: Pallets are wrapped in waterproof film and protected by strips and steel bands.