00000nz  a2200000n  4500
001  KSH2002012701
005  20021008000000
008  020531 n azknn|abn          |a a|a    | 
150  ▼a6가 크롬[六價--]▲
450  ▼a육가 크롬[六價--]▲
450  ▼wr▼i영어▼ahexavalent chrome▲
550  ▼wg▼a크롬[chromium]▲
550  ▼a콘크리트[concrete]▲