Zhoushan Zhengyuan standard parts co., LTD., Zhejiang, China is a professional fastener manufacturer which possesses legal entity with self-support import & export rights approved by the state. The company is located in NO.65 Zhengyuan road, Shenjiamen marine organism industry park, Putuo district, Zhoushan, Zhejiang, with fixed assets of 220 million Yuan, the registered capital of company is 16.5 million Yuan, covers an area of 53280 square meters, actual production capacity is 42,000 tons per year. The company existing staff more than 350, more than 120 employees with intermediate or advanced professional titles and technical professionals. The company sites on Shenjiamen port- the largest fishing port in China, across the bay from mountain Putuo “Buddhist Kingdom on the Sea” and Zhujiajian “Sea goose swing”, convenient sea-land-air transportation, pleasant climate and environment, what a scenic island.

National technical fields of Zhengyuan Standard Parts Co., Ltd.: member of national wind energy mechanical standardization technical commission, member of national fastener standardization technical committee, member of national pipeline fittings standardization technical committee, standing committee member of All-China Federation of Industry and Commerce hardware & electrical association fastener professional committee, director of China machine general components industry association, director of China agricultural machinery industry association wind machinery branch, director of China heat treatment association, president unit of Zhoushan heat treatment society, group members of China steel construction society, member of world wind energy association, member unit of China nuclear energy industry association, Guangdong-China nucleus fixed-point products supply chain base, China nuclear industry association-small and medium enterprises professional committee, national standard parts product quality supervision and inspection center-marine standard parts research and development base, member of Zhejiang standard parts standardization technical committee, vice-president unit of Zhejiang fastener industry association; Achieved lots of distinctions, such as obtained the well-known trademark of Zhejiang province, “Green-Enterprise” of Zhejiang province, national security production standardized secondary enterprise, municipal government nominees of quality, Zhoushan top 10 innovative enterprises, Putuo district government quality award, Putuo district top 10 enterprise and so on. Meanwhile, Mr. Lin Zhongyue, the leader of Zhengyuan won the title of advanced individual in wind energy industry from 2012 to 2016. Awarded "Zhejiang manufacturing" great craftsman in 2017.

Zhengyuan Technical verification capability area: Zhengyuan passed recognition of departments as below: CNAS Accreditation, national high and new technology enterprise, enterprise technical center of Zhejiang province, Zhejiang enterprise institute, Zhejiang technical standard research and innovation base, Zhoushan academician workstation. Zhengyuan obtained comprehensive special grade of steel construction fastener manufacture enterprise and license of pressure pipe components manufacturing. Furthermore Zhengyuan was awarded the title of outstanding enterprise and innovation team in Putuo district, and participated in drafting and formulating a number of national fastener standards.

Enterprise system field: Passed the ISO9001\ISO14001\OHSAS18001 international quality environmental healthy safety system certification, CGC wind turbine generator system certification, API 20E certification audit in the American association of petroleum and chemical, product CE certification, Hitachi supplier system in Japan and system of qualified supplier of China national nuclear corporation

Professional production projects in Zhengyuan: All kinds of cold and hot heading bolts, hexagon nut and stainless steel bolts and nuts, various non-standard and special-shaped parts and lock nuts（bolts, nuts, studs, washers, rigging) and others standard products. Executive standard: GB national standard, ISO international standard, ANSI standard, JIS standard, DIN standard, BS standard, UNI standard, AS standard, CNS standard, SH (petrifaction) standard, HG (chemical) standard, automotive fasteners and rail transit fasteners, etc. Specifications from M3 to M200, 1/2" to 5", bolt grade from 8.8 to 12.9, nut grade from 8 to 12. Surface of the product is processed by the following process: the Dacromet, hot-dip galvanizing, manganese phosphor black, mechanical zinc plating, Cold galvanizing, GREENKOTE (Mixed zinc powder), Teflon PTEE, spray-on coating and self-lubrication, etc. Materials we adopt includes stainless steel 304, 316, 316Ti, 2205, 1.4507, 660, TX190, 20#; alloy steel SCM435, SCM440, 20MnTiB, 35VB, 35CrMo, 42CrMo, 40CrNiMo, 40Cr, B7(4140), 4145, 4340, B16, L7; carbon steel 45#, 35#, 20#, A3, etc.

Main products are produced professional by Zhengyuan: 1.Wind energy products 2. Nuclear power and military industrial products 3. Products of petroleum, petrochemical and electric power 4. Products of high-speed train, Bridge and rail transit 5. Ship products 6. Products of aviation ,turbine and automobile7. Steel construction series products. Our products are exported to North America, Europe, Japan, South Korea, southern-east Asia and Taiwan, cover all provinces and autonomous regions of China.

The company engaged in standard parts manufacturing more than 40 years, got strong technology strength, excellent equipment, exquisite workmanship and wise management already. They mainly use six domestic advanced production lines "1. Heated or wrought bolt production line, 2. Heated or wrought nut production line, 3. Cold heading production line, 4. Threaded rod production line, 5. Heat treatment production line, 6. surface coating production line" and four centers "Zhengyuan technical center", "staff training center", "CNC machining center", " ERP information center" as the leading factors. Technical center consists a physic-chemistry calibration detection and verification center, which has a set of new-type and full-equipped detection and verification equipments. The center mainly used for material chemical analysis, metallographic examination, mechanical property test, physical performance test, torque measurement, relaxation measurement, nondestructive measurement, anti-corrosion performance test, gauge verification and a series of technical inspection and proceed scientific research to control and improve the quality of products.

Perfect quality assurance and strict management system with strong productivity and advanced testing means make present glory of the company, which uses brand strategy such as IS09001 international quality certification system, Zhejiang green enterprises and Zhejiang famous brand to win the praise and recognition of market. At the same time, takes advantage of the company web site (http://www.zszyss.com) and others internet information to make further development on international fastener market, laid the foundation of become national largest production market of Red heading bolts and nuts and high-grade products.

Your desire is the pursuit of "Zhengyuan", expects that "Zhengyuan" could create new achievements with you for success and development of your career. The company takes the development of the national fastener industry as its own responsibility. As they look forward to the future, they dedicate to becoming a world-class fastener supplier. "Zhengyuan" will quicken their pace of reform and innovation, comply with the core value of "responsibility, integrity, innovation", carry forward the enterprise spirit of "Fight and struggle, win the future" to build century-old enterprise which own excellent quality, skilled technology, and preferred benefit. The company will serve the clients wholeheartedly with first - class quality, top service and the reasonable price!

“Dealt once, friends forever”, Mr. Lin Zhongyue doubles as chairman of the board and general manager will with a sincere heart to cooperate with friends from all walks of life to crest a brilliant future, to enhance communication and cooperation with domestic and worldwide customers, to achieve the ideal of becoming the international well-known enterprise.