00000nz  a2200000n  4500
001  KSH2006006653
005  20060507185512
008  060507 n azknn|abn          |a a|a    | 
150  ▼a공익 산업[公益産業]▲
450  ▼wr▼i영어▼apublic utility industry▲
550  ▼wg▼a산업[産業]▲
550  ▼a자연 독점[自然獨占]▲