00632nam a2200193 c 4500001001300000005001500013007000300028008004100031049002800072052001800100056001500118082001600133245006900149260005500218300003800273650005300311710005700364950001700421KMO20216210520211209163219ta210915s2021    ulkad         000   kor  0 lEM8070766lEM8070767c201a530.463b21-1  a530.4632601a620.14322300a내화물공업현황 /d대한내화물공업협동조합 [편]  a서울 :b대한내화물공업협동조합,c2021  a163 p. :b삽화, 도표 ;c30 cm 8a내화물 공업[耐火物工業]0KSH2000010326  a대한내화물공업협동조합0KAB2018075774aut1 a가격불명