“MACH NAME: GENERAL ALARM;
MODEL: HUAYAN;
MAKER: ZHONGHANG SHIPBUILDING INDUSTRY CO.;
BOOK NO: TK40201-660-02;
SPECIFICATION: DRAWING FOR INTERIOR COMM. SYSTEM” “ALARM SIREN, MODEL= SG-6B/TY, water proof, 220VAC, IP 56
” ZHONGHANG SHIPBUILDING.HUAYAN.NA