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What does it mean to write 202 1 on Kanghua fish flail fire-extinguishing bacteria?
Refers to the production date or shelf life of the product. The words "202 1" may indicate that the product was produced on 202 1, or the shelf life of the product will be 202 1. Kanghua fish flail is a biological agent for fire fighting, which contains a microorganism that can decompose various combustible substances, effectively preventing the occurrence and spread of fires.
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