00000nz  a2200000n  4500
001  KSH2004033577
005  20040827120543
008  040827 n azknn|abn          |a a|a    | 
150  ▼a역삼투 여과 장치[逆渗透濾過裝置]▲
450  ▼wr▼i영어▼areverse osmosis filtration equipment▲
550  ▼wg▼a여과 장치[濾過裝置]▲