Dongying Chenhui Machinery Manufacturing Co., LTD, established in 1999, is located in Dongying, the base of China’s second largest oilfield- Shengli Oilfield. The company specializes in manufacturing machinery parts and finish machining by means of world’s advanced technology——lost foam casting and vacuum casting. Moreover, machinery equipment assembly and OEM service is available. Chenhui has over 3000 types of products, mainly including heavy casting parts for petroleum machinery, rubber machinery, mining machinery, and marine machinery .etc, which vary from 50kg to 10000kg each. The annual production can reach 20, 000 metric tons. Chenhui has received GB/T9001-2000 and ISO9001:2008 certificate. The company is equipped with advanced testing instruments like direct reading spectrometer, flaw detector and tension tester in quality control. With a skilled and experienced development team, we can design and produce different products according to customers&＃039; requirements.