00000nz  a2200000n  4500
001  KSH1999019320
005  19990704182122
008  990704 n azknn|abn          |a a|a    | 
150  ▼a상층 노반[上層路盤]▲
550  ▼wg▼a노반[路盤]▲
550  ▼a하층 노반[下層路盤]▲