00000nz  a2200000n  4500
001  KSH2000032180
005  20000824084604
008  000824 n azknn|abn          |a a|a    | 
150  ▼a입간 부식[粒間腐蝕]▲
550  ▼wg▼a부식(금속)[腐蝕]▲