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DIN 6916 - 1989 Round Washers for High-Tensile Structural Bolting
DIN 7349 - 2009 Plain Washers For Bolts With Heavy Clamping Sleeves DIN 7349 - 1974 Plain Washers for Bolts with Heavy Clamping Sleeves
DIN 7989 - 1974 Plain washers for steel structure DIN 7989-2 - 2001 Plain Washers For Steel Structure-Grade A
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