437
240
487
370
251
414
445
323
295
492
422
444
450
294
395
491
492
426
482
381
316
401
249
460
394
284
322
246
501
421
470
215
- Sgj Vacuum Alumina Metallized Ceramic, Brazing Assembly, Feedthrough, Isolator, Electrodes, Connector, Break, Insulator, Filter, Electron Beam, Arc Envelope
344
227
229