Haiyan Yuanyang Standardpiece Co., Ltd. is an export enterprise with rich experience of many years in the manufacture of high-quality fasteners. Located in Haiyan Huangqiao Hardware Standard Part Park, Yuanyang enjoys an excellent situation, adjacent to China International Industrial Fastener Exhibition & Purchasing Centre and Hangzhou-Bay Sea-crossing Bridge, so we are convenient to Shanghai (100km) and Hangzhou (90km). Yuanyang has a broad range of fasteners, including all grades of standard and non-standard pieces. In particular, Yuanyang specializes in the production of high-strength inner-hexagon bolts, outside-hexagon bolts, ANSI & DIN bolts, carriage bolts and blunt bolts. For example, ANSI products range from grade 2, grade 5 to grade 8 and DIN products range from grade 4.8, grade 8.8 to grade 10.9. With abundant capital, advanced workshop equipment, first-class processing technology and scientific management, Yuanyang is rapidly ...[More]ng with an annual output of nearly 5000 tons. Yuanyang has social honesty as well as legal responsibility to ensure that the quality of products can be fully relied upon and is in accordance with both Chinese and International Standards. Because of outstanding product quality and service, Yuanyang has won domestic and foreign customers' high praises. At present, Yuanyang products have been best-sellers in Europe, America and Russia.