00000nz  a2200000n  4500
001  KSH2002025451
005  20021108002803
008  020920 n azknn|abn          |a a|a    | 
150  ▼a전자기 차폐[電磁氣遮蔽]▲
450  ▼wr▼i영어▼aelectromagnetic shielding▲
550  ▼a전자기 차단[電磁氣遮斷]▲