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June17 - June19, 2025
National Exhibition and Convention Center（Shanghai）
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Handan Yongnian Hongda Fastener Manufacturing Co., Ltd., was founded in 1980s，Our factory is located in Yongnian District, Handan City, Hebei Province. After years of striving for perfection, it has become a leading brand of large hardware and fastener manufacturing of integrating research and development, production and sales.
Hex bolt DIN931 DIN933，Hex nut DIN934，，concret screws
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