Ningbo Dingshen Metalworks Co., Ltd. was founded in 1998, located in Ningbo China. As a member of Chinese Fastener Association, we are specialized in manufacturing high strength Headed bolt, Thread stud Bolt, Tap end stud, Anchor bolt, Screw, Nut, Washer and customized machined parts, which are extensive used in Oil&Gas industry, Petrochemical industry, Power station, Steelwork Construction, Construction Machinery and Electrical Equipment. Standards cover ANSI/ASTM, DIN, ISO, BS, GB, JIS, AS, and so on. After more than ten years unswerving efforts, now our company covers an area of 30,000 sq.m, with building area of 20,000 sq.m. We are fully equipped with over 200 production equipments and 30 examination devices. W......