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DIN 3570-1968 U-bolts
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Hexagon socket head cap screws GB/T 70.1-2008
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Eye bolts GB 825-1988
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Type 2 Hexagon Flange Nut GB/T 6177.1-2016
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Anchor bolts GBT 799 (C) -2020
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Cross recessed countersunk head self drilling and tapping screws GB/T 15856.2-2002
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Square head bolts, grade C GB /T 8 – 2021
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Carriage Bolts GB /T 12 – 2013
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Plum blossom groove self tapping screw GB /T 2670.1 – 2017
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