
Methods of test for flexible cellular materials. Method 14. Preparation of water extract. Method 15. Determination of tear strength. Method 16. Determination of air flow value
出版:British Standards Institution

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Methods of test for flexible cellular materials. Method 14. Preparation of water extract. Method 15. Determination of tear strength. Method 16. Determination of air flow value
出版:British Standards Institution
专家解读视频