Precision Silicon Nitride Ceramic Bush High Temperature Resistant Insulation Block Customized Heat Ceramic. High Temperature Resistance: Silicon nitride ceramic designed for high-temperature insulation applications. Customizable Design: Available with customized shapes and dimensions based on specific design requirements. Precision Grain Size: Controlled grain size ranging from 1 to 10 micrometers for optimal performance. High Purity Material: Manufactured with 95% purity silicon nitride ceramic material. Cutting Service: Professional cutting processing services available for finished ceramic parts. OEM & ODM Support: Full OEM and ODM services available for custom manufacturing needs. 100% Quality Inspection: Every finished product undergoes functional and visual inspection before shipment. Flexible Lead Time: Off-season delivery within 15 workdays; peak season within one month.