Ningbo Zhongli Bolts Manufacturing Co.,Ltd, established in 2003,we are professional manufacturer of high-strength fasteners. Our smooth management allow us to supply thorough service with high quality bolts in various standard and grade. The products series include DIN standard bolts, ANSI standard bolts, A325 bolts and GB Chinese standard bolts. It's grade includes 8.8,10.9,12.9 etc. These products were exported to Europe, Asia, Middle east and other countries and regions. Currently, our factory and storage covers 10,000 square meters and include 6 sets of cold header machines,4 sets of hot forging machines and 1 sets of mould repair machines. We carry out the ISO9001 to every process of production.