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Wenzhou Zhanbo Industrial Co., Ltd.
温州展博实业有限公司
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8 Years
Main Products
Flange bolts
Inner hex. bolts
Hex. bolts
non-standard parts
Rolled steel
Thread rolling machine
Cold heading machine
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40Cr/35CrMo/42CrMo carriage bolt/semicircular head square neck bolt
(GB 12 - 1976)
material
Carbon steel
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Similar Products
GB /T 12 - 2013
GB /T 12 - 1988
ASME/ANSI B 18.5 - 2012
ASME/ANSI B 18.5 - 2008
ASME B 18.5 - 2012 (2017)
