Ningbo Dahai Fasteners Co., Ltd.is located in Xiepu Town , Zhenhai District of Ningbo City,Zhejiang province,China.A manufactuer specialized in producting various of models and specification of High-Strength Fastener products.The factory covers an area of 20,000 square meters,registered capital of 10 million yuan, with the total annual productivity of 2,400 tons.Products are broadly used in automobiles, major engineering projects, mechanical engineering, petrochemical engineering, buildings, vessels, bridges, metallurgy, environmental protection and so on.Through years of development,the company has 6 automatic cold forging equipments, 2 hot forging production lines, 2 fully automatic and imported mesh belt heat treatment lines , and founded the Ningbo Duohai International Trade Co., Ltd in 2017 .We mainly produce construction fastener which includes high quality bolt, nut, screw and non-standard fastener in accordance with GB, DIN, ISO,ANSI / ASTM / SAE / IFI, AS,BS, UNI, JIS., etc.In addition,we also offer other customer-tailor service of non-standard bolts,bolts for auto industrial,and B7 thread rod.The products grade includes Gr.8.8,Gr.10.9,Gr.12.9 etc,and exported to Europe, Australia, North America and Southeast Asia.The product quality and company reputation are highly praised by overseas customers.The company persistently carries forward enterprose spirit of "Sincerity,Unity,Forging ahead",cultivates enterprise culture of "Staff incorporate into the company".Our policy is to guarantee the safety of the society by high quality, provide premium products by audacious innovation, satisfy the customers by considerate service.We expand the international market and build up highly reputation. Now our products are distributed to all over the world.