
BS ISO 898-2. Mechanical properties of fasteners made of carbon steel and alloy steel. Part 2. Nuts with specified proof load values. Coarse thread
出版:British Standards Institution

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BS ISO 898-2. Mechanical properties of fasteners made of carbon steel and alloy steel. Part 2. Nuts with specified proof load values. Coarse thread
出版:British Standards Institution
专家解读视频