Hypodermic Silicon Carbide Grinding Wheel for Needle Cannula Surface Polishing Medium Large Needle. Precision Grinding Capability: Cylindricity <0.02 and Circular Degree <0.01 for high-precision needle cannula polishing. Vitrified Bond Technology: Uses ceramic vitrified bond for durable and efficient surface grinding performance. Wide Material Compatibility: Suitable for grinding ferrous/non-ferrous metals, glass, ceramics, stone, and marble. Quality Assurance Process: Includes pre-production samples and final inspection before every shipment. Professional Manufacturer: Over 30 years of experience in abrasives and vitrified grinding wheels manufacturing. Flexible Payment Options: Accepts T/T, L/C, Credit Card, PayPal, Western Union, and Cash in USD or CNY. Global Shipping Terms: Offers FOB, CFR, CIF, EXW, DDU, and other Incoterms for worldwide delivery. Multi-Language Support: Communication available in English, Chinese, Spanish, Japanese, and 10 other languages.