Hanko P80 Black Silicon Carbide Waterproof Sandpaper. Custom Logo and OEM/ODM: Accepts logo customization and supports OEM/ODM services for tailored branding. Wide Grit Range: Available in grits from P60 to P3000 to meet various coarse to fine sanding needs. Free Sample Offer: Provides free samples to allow customers to test product quality before ordering. High Water Resistance: Features good water resistance, suitable for wet sanding applications on metal and wood. 30+ Years Expertise: Backed by over 30 years of dedicated experience in abrasive R&D and production. ISO Certified Quality: Manufacturing processes are certified under ISO 9001 and ISO 14001 standards. Free Reproduction for Defects: Promises free reproduction of products if any quality problems are identified. Fast Engineer Response: Provides quick technical support with engineer response within 24 hours.