00000nz  a2200000n  4500
001  KSH1997000782
005  19970501203033
008  970501 n azknn|abn          |a a|a    | 
150  ▼a단발 발파[段發發破]▲
450  ▼wr▼i영어▼adelay blasting▲
550  ▼wg▼a발파[發破]▲
550  ▼a제발 발파[齊發發破]▲