Handan Da run Fastener Manufacturing Co., Ltd. is a large scale expansion bolt manufacturing modern enterprise, it has Taihang and double solid two brands. Professional production: expansion bolt, car repair house lizard, elevator house lizard, window type house lizard, four slices of house lizard, internal force house lizard, national standard internal expansion, expansion screw, mechanical anchor, national standard pull explosion, all teeth screw, German standard nut and other fasteners. The company's production base is located in the new industrial area of Yongnian village, Hebei province. The company integrates scientific research, development, production, sales and service. It has advanced technology and equipment in China, strict product quality assurance system, strict management of product quality by means of production, making the product in the market scale growing, grade and image rapid promotion, and received high praise from leaders at all levels and customers! In the s...