WELCOME TO NINGBO S&D METALWORK CO.,LTD THE CAPACITY OF S&D METALWORK Ningbo S&D Metalwork Co., Ltd is a professional Metalwork Company and Dock Hardware Distributor in Yinzhou District, Ningbo, specializes in Fasteners, such as Bolts, Nuts, Threaded Rods and Washers, with standard ANSI, ASTM, DIN, BS, ISO, etc, Stamping parts and Casting parts, according to CAD drawing and samples. Welcome to the Custom Design. THE QUALITY MANAGERMENT OF S&D METALWORK 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.