IS:05490 (Part 1) - 1977; Specification for Refills for Portable Fire Extinguishers and Chemical fire Engines Part 1 for Soda-Acid Portable Fire Extinguishers

IS:05490 (Part 1) - 1977; Specification for Refills for Portable Fire Extinguishers and Chemical fire Engines Part 1 for Soda-Acid Portable Fire Extinguishers - New Delhi BIS 1978 - 7p

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