SFS 2638-1969 Taper keys with gib head and their corresponding keyways n《钩头楔键及其适用的键槽》.pdf

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GB T 1565-1979 钩头楔键 型式尺寸.pdf

NBN E 27-710-1974 8750 《细长的钩头楔键或非钩头楔键 n n》.pdf

NBN E 27-711-1974 7500 《用细长的钩头楔键进行键固定》.pdf

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