Binzhou Zhengdao Machinery Manufacturing Co., Ltd. was established in September 2006 and is located in Binzhou City, one of the first national health cities in China. It has convenient transportation and complete service facilities.
　　The company's main products include wear-resistant gaskets, salt cores, wear-resistant gaskets with internal cooling channels, and stainless steel.
　　Mr. Su Daosheng, the chairman of the company, is the chief research and development expert of wear-resistant inlaid rings for aluminum pistons in China. He began developing inlaid rings in 1984 and was the first person in China to develop wear-resistant inlaid rings. The inlaid rings and salt cores produced by Zhengdao Company rank first in technology and quality among all manufacturers in China.
　 　The company obtained TS16949 quality system certification in November 2008; Passed ISO14001:2004 environmental management system certification in August 2012; Obtained the National Metrology Standard Assessment Certificate in September 2012; In March 2013, the company passed the national safety production standardization certification.
　　The company has 23 national patents, including 5 invention patents and 18 utility model patents.
　　 公司主要客户是为奔驰、沃尔沃、通用、丰田、本田、现代、吉利等汽车主机厂配套的专业活塞制造企业。出口美国、日本、德国、印度、巴西、俄罗斯、捷克、马来西亚、台湾等国家和地区。
　　Advantages of Zhengdao Company: ① Through a sound quality management system, it can continuously and stably ensure product quality; ② The company focuses on reducing product costs and promises to provide our customers with low-priced and attractive products to help them minimize costs and establish long-term mutually beneficial cooperative relationships with them.