The company specializes in the production of high pressure resistant, high and low temperature resistant and corrosion-resistant high-strength bolts, nut, stud and non-standard special fasteners complying with national standard (GB), American Standard (ASTM), international standards (ISO) and the domestic industry standards. The products are widely used in marine vessels, petrochemical, nuclear power machinery, fluid engineering, pressure vessels, new energy, new environmental protection equipment and other industries.