... resisting and antioxidation, etc. They are applied to vacuum device, instrument ceramics, line insulation, switches of bands, outlets ... blocks, controllable silicon and solid circuit outer skin, sparking plug ceramics, textile ceramics, fuse-tube ceramics and high- ... Strengthkv/mm2415152020The belowed is inspection equipments. Vacuum Device, Instrument Ceramics Use Aluminium Oxide High Vacuum Ceramic