30 |
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DIN 6915 - 1999
钢结构栓连接用高强度大六角螺母
High-Strength Hexagon Nuts With Large Widths Across Flats For Structural Steel Bolting
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供应商(7)家
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31 |
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DIN 6915 - 1989
钢结构栓连接用高强度大六角螺母
High-strength hexagon nuts with large widths across flats for structural steel bolting
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供应商(7)家
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