Changjian Industry is a supplier of high-strength lightweight mechanical parts and solutions for customers. Changjian Industry has three holding and shareholding enterprises and three production lines, with an annual output of 80,000 tons of cast iron. Changjian has established long-term cooperative relations with internationally renowned customers, including KUKA, ABB and so on. Long-term cultivation in industrial robots, construction machinery, solar energy, scroll compressors, vehicle axles and other sub-fields. Products are widely used in industrial automation, construction machinery, hydraulic machinery, solar energy, commercial air conditioners, heat pumps, commercial vehicles and other industries and fields, and enjoy good reputation and prestige among customers and industries. Kunshan Changjian Foundry Co., Ltd. was registered and established in January 2005, located in bacheng town, Kunshan City, Jiangsu Province. It has a 17-year business history and employs about 130 people. It owns an AMF-III automatic horizontal line of Japanese foundry Dongjiu line, with an annual production capacity of about 15,000 tons and a molded size of 700mm×600mm, and mainly produces solar energy, construction machinery, scroll compressors and other products. Changhua New Robot Parts Nantong Co., Ltd. was incorporated in September 2017, located in Sutong Science and Technology Industrial Park, Nantong City, Jiangsu Province, and officially put into operation in December 2019. With about 130 employees, it owns a large Suzhou-cast hydrostatic automatic line, with an annual production capacity of about 50,000 tons and a model size of 2,000mm×1,100mm. It mainly produces industrial robots, engineering machinery, axle housings, etc. Changjian Industry (Anhui) Co., Ltd. was incorporated in May 2019, located in the port eco-industrial park of Ningguo Economic and Technological Development Zone, Anhui Province, and officially put into production in October 2021. It has about 70 employees, and has an automatic horizontal line of Zhiheng AMF-III, with an annual production capacity of about 15,000 tons and a shape size of 700 mm× 600 mm. At present, it mainly undertakes and transfers some products of Kunshan factory. According to the future market development and customer demand, we will invest in processing, heat treatment and other equipment and facilities one after another, and it is expected that a new casting production line will be invested around 2025 to consolidate Changjian's leading position in the casting field. Changjian Foundry has obtained ISO-9000:2010 quality management system, TS16949:2009, ISO14001:2004 environmental system certification, German Classification Society GL and French Classification Society BV certification.