00000nz  a2200000n  4500
001  KSH1998029107
005  20040128204012
008  980429 n azknn|abn          |a a|a    | 
150  ▼a모래 여과[--濾過]▲
550  ▼a모래 여과기[--濾過器]▲
550  ▼a오니[汚泥]▲