
BS EN ISO 3506-1. Mechanical properties of corrosion- resistant stainless-steel fasteners. Part 1. Bolts, screws and studs
出版:British Standards Institution

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BS EN ISO 3506-1. Mechanical properties of corrosion- resistant stainless-steel fasteners. Part 1. Bolts, screws and studs
出版:British Standards Institution
专家解读视频