440
246
495
374
254
419
447
326
300
493
423
449
455
296
406
494
508
429
486
384
323
409
254
462
398
292
323
248
505
425
477
225
- Sgj Vacuum Alumina Metallized Ceramic, Brazing Assembly, Feedthrough, Isolator, Electrodes, Connector, Break, Insulator, Filter, Electron Beam, Arc Envelope
351
229
236