000  $anz n  2
000  $a주제어
001  $aKSH2000002089
005  $a20000320051541
008  $a000320 n azknnaabn          |a a|a    | 
150  $a로케트 내열 재료[--耐熱材料]
450  $wr$i영어$arocket heat resisting materials
550  $wg$a내화재[耐火材]