### Product Features
1. **Premium Rust & Corrosion Resistance**: Crafted from high-grade stainless steel with a chromium oxide passivation coating on the surface, it effectively resists corrosion caused by acid, alkali, salt spray and regular clean water, offering up to 10 years of rust-free service life. It cuts down frequent replacement costs and fits perfectly for various harsh working environments.
2. **Ultra-high Precision Manufacturing**: Produced through 3 core processes including rough grinding, fine grinding and super finishing, it features an ultra-low roundness deviation of only 0.1μm, and surface roughness Ra ≤ 0.008μm. This ensures ultra-smooth operation, minimizes equipment abrasion and greatly improves the accuracy of the entire operating system.
3. **Super Hardness & Wear Resistance**: Optional high-hardness stainless steel variant is treated with professional cryogenic processing, reaching a hardness of HRC 58-62, with a fatigue life of over 1 million rotations. It will not deform even after long-term heavy use, effectively extending the service life of your supporting equipment and reducing maintenance frequency.
4. **Full Size Optional Range**: We offer a complete diameter size range from 0.8mm to 100mm, which fits perfectly for different models of bearings, valves, daily chemical products and other customized demands. No extra secondary processing is needed, saving you plenty of procurement time.
5. **Food-grade Safety Option**: 304 stainless steel variant meets strict food contact safety standards, no harmful substance precipitation, can be in direct contact with food, cosmetics and medical reagents, fully satisfying the compliance requirements of food machinery, medical, cosmetic industries and medical device production.
### Specifications
Product Type: Precision Steel Balls
Material: Stainless Steel
Available Sizes: 3mm / 4mm / 5mm / 6mm
Color: Silver
Applications: Bearings, industrial valves, food processing machinery, medical equipment, cosmetic roller bottles, hardware accessories, toys, jewelry polishing, aerospace components, spraying equipment
Package Quantity: 100 Pieces
### Notes
1. The product images are for reference only, please refer to the size details in the description for actual size.
2. Please allow 0-0.1mm size deviation due to manual measurement, thank you for your understanding.
3. Actual color may differ slightly from the images due to different monitor settings.
The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.