Silicon Carbide sand paper Size:230mm*280mm Type:sanding paper Usage: For polishing Feature: waterproof 1 Silicon Carbide sand paper2 Size:230mm*280mm3 Material: Silicon Caride4 Type:sanding paper5 Usage: For polishingIt is suitable for grinding and polishing automobile, furniture, leather, cases of electronical household applicances, mechanical components, plastic, ceramics, glass and etc.