Zhejiang Haisheng Jinhuan Machinery Co., Ltd., established in 2005, is located in the scenic Dongcheng Industrial Zone of Suichang County, the source of Qianou River. The company covers an area of 24,000 square meters, with a workshop area of 15,000 square meters. It is equipped with large CNC 5-meter ring rolling machines, various CNC machine tools, forging equipment, advanced supporting processing equipment, and testing devices. With strong technical expertise, the company implements lean production management across its operations. It has a full production line that integrates forging, heat treatment, machining, and performance testing. Haisheng adheres to an integrated production management approach that combines scientific production processes with strict quality control at every stage of manufacturing.

The company has obtained several important certifications, including the “Special Equipment Manufacturing License of the People’s Republic of China” issued by the General Administration of Quality Supervision, Inspection, and Quarantine of China, ISO 9001:2008 Quality Management System Certification, ISO 14001:2004 Environmental Management System Certification, ISO 45001:2018 Occupational Health and Safety Management System Certification, as well as certifications for PED, Special Equipment Manufacturing, and CE marking for EU quality standards. The company has been honored with titles such as “Specialized, Refined, Featured, and Innovative Small and Medium-Sized Enterprises” and “High-Tech Enterprise” by Zhejiang Province, and is also certified by Sinopec. Additionally, Haisheng has been recognized as an outstanding demonstration unit for quality and integrity by relevant authorities.

The company’s main products include forgings, metal rings, pressure vessel flanges, tube sheets, mechanical components, valve parts, and other non-standard products made to customer drawings. The flanges and rings have a maximum diameter of 6 meters and height of 900 mm, available in both finished and blank forms. The main materials used include austenitic stainless steel, duplex stainless steel, high-temperature alloys, Monel alloys, Inconel alloys, Hastelloy alloys, corrosion-resistant alloys, Incoloy alloys, nickel-based high-temperature alloys, low-temperature alloy steel, and high-quality carbon steel. The products are widely used in industries such as petroleum, chemicals, military, power generation, pharmaceutical machinery, and food machinery.

Haisheng adheres to the cooperative philosophy of “Integrity and Win-Win” and the development concept of “Serving Customers, Giving Back to Society.” With a market-oriented approach and a commitment to high-quality service, Haisheng aims to contribute to the economic and social development and strives to be a sustainable partner for equipment manufacturers across various industries worldwide.