00000nz  a2200000n  4500
001  KSH1999017741
005  19990621155527
008  990621 n azknn|abn          |a a|a    | 
150  ▼a내화 구조[耐火構造]▲
450  ▼wr▼i영어▼afireproof construction▲
550  ▼a건축 구조[建築構造]▲
550  ▼a내화 건축[耐火建築]▲