“MACHINERY DESCRIPTION & No:GAS DETECTION SYSTEM
TYPE:SDK-805RID(HC&CH4)/F44/805EC-18S
MAKERS:RIKEN KEIKI KOREA
DRAWING/INSTRUCTION BOOK:600F341018PV / HO(M)-35” “DREGER TUBES BENZENE RANGE 2-60PPM
” RIKEN KEIKI CO.NA.NA