our company is specialized in all kinds of fasteners such as scews,bolts,nuts,screw caps,metal turning parts and special punching parts.The type is including Germany DIN,British BS,America ANSI/ASME ,Japan JIS and National GB.The grade of product is 4.6,4.8,6.8,8.8,10.9.The annual capacity amounts to 5000 tons.The 90% products are exported