00756nam a2200217 c 4500001001300000005001500013007000300028008004100031020003300072049002800105052001700133056001300150082001400163245012500177260004600302300003800348650004300386650005600429710004300485950001000528KMO20134063520150623142342ta130726s2013    hcka          000   kor    a9788998256401g93500:c\50000 lEM5712993lEM5712994c201a575.7b13-15  a575.72501a665.722120a(전문보수) 가스사용시설 :b고압가스·LP가스·도시가스 사용시설 /d한국가스안전공사 [편]  a천안 :b한국가스안전공사,c2013  a41 p. :b천연색삽화 ;c26 cm 8a고압 가스[高壓--]0KSH1998003870 8a액화 석유 가스[液化石油--]0KSH1998001343  a한국가스안전공사0KAB2015003210 b\5000