
Foam Compound - All Purpose Foam Compounds For Making Of Low, Medium And High Expansion Foam For Fire Fighting Purposes
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Foam Compound - All Purpose Foam Compounds For Making Of Low, Medium And High Expansion Foam For Fire Fighting Purposes
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频