SIS SMS 2341-1966 Blank for shank hooks Rectangular section Safe working load 25125 tons《直柄单钩毛坯件 矩形截面，安全工作负载25吨到125吨》.pdf

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GB T 10051.4-2010 起重吊钩 第4部分：直柄单钩毛坯件.pdf

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GB T 10051.4-1988 起重吊钩 直柄单钩毛坯件.pdf

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SIS SMS 2340-1966 Blank for shank hooks Trapezoidal section Safe working load 0 25 63 tons《直柄单钩毛坯件 梯形断面，安全工作负载0 25吨到63吨》.pdf

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