
4 Inch Grinding Wheels for Stainless Steel and Metal and Iron with MPa Certificates. MPA & ISO Certifications: Products hold MPA certificates and passed ISO 9001:2000 international quality system. OEM/ODM Customization: Full OEM and ODM services available with custom color options (Red/Black/Green). Superabrasive Material: Made with high-performance Alumina superabrasive for efficient metal grinding. Multi-Material Application: Suitable for cutting and grinding stainless steel, aluminum, carbon steel, and cast iron. Free Sample Availability: Samples are provided free of charge, with customer covering shipping costs. Manufacturer Direct Supply: Direct sales from Bluebird Abrasives factory with over 20 years of experience. Flexible Packaging Options: Offers shrink, plastic box, carton, and color box packing based on wheel type. High Precision Standards: Cylindricity under 0.05 and circular degree under 1 for superior performance.