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KINDOYO 2 x M12 Expansion Screw Bolts - Stainless Steel External Hexagonal Nut Sleeve Bolt Anchor Heavy Expansion Heavy Duty Fixing Anchors - M12*80/2 Pieces : Amazon.com.be: Tools & Home Improvement
Connections in Steel Structures II - Behavior Strength and Design | PDF | Screw | Strength Of Materials
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