Ningbo DongNan High Strength Fasteners Co., Ltd. is specializing in high strength fasteners. Our factory was founded in 1987 covering a ground area of over 15000 square meters, with more than 260 workers. We had advanced producing and quality test equipments, and annual products are more than 15,000 tons. Our products are mainly used for high steel construction buildings, workhouses, power stations, bridges, railways, cranes, airplane storeroom. To meeting our clients needs, we constantly introduce new equipments and search after new techniques. Strive for first-class quality; aim at quality benefit, to serve our clients. Our company has passed the ISO 9001 -2000 quality system certificate. We would like to welcome you heartily by our quality products.