
Tolerances for fasteners. Specification for tolerances of bolts, screws and nuts with thread diameters >= 1.6 mm and <= 150 mm and product grades A, B and C
出版:British Standards Institution

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Tolerances for fasteners. Specification for tolerances of bolts, screws and nuts with thread diameters >= 1.6 mm and <= 150 mm and product grades A, B and C
出版:British Standards Institution
專家解讀視頻