Ningbo S&D Metalwork Co.,Ltd is a professional metalwork company in Yinzhou District, Ningbo, specializes in Fasteners, such as Bolts, Nuts,Threaded Rods and Washers, with standard ANSI, ASTM, SAE, DIN, BS, ISO, etc, Stamping parts, Turning parts, Welded parts, Casting parts and Special parts, according to CAD drawing and samples.

S&D Metalwork controls each link to ensure the factory can produce the high-level quality products, from raw material to the production process in strict accordance with the procedures and boasts well quality inspectors and testing, which take effective control on the production process to ensure product quality.

According to the following standards,
　　1) American System (ANSI/ASME)
　　2) Germany (DIN)
　　3) British System (BS)
　　4) Australian System (AS)
　　5) Guo Biao (GB, China National Standard)
　　6) Japanese System (JIS)
　　7) ISO Standard