Established in 1952, our company is a professional manufacturer engaged in the research, development, production, sale and service of heavy-duty engine parts.



We are located in Rizhao and have convenient transportation access. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. In recent years, our company has introduced a series of advanced equipment, including digital machining centers, casting robots and gravity casting machines.



In addition, we have attained ISO9001:2000 and ISO/TS16949:2002 certificates. Selling well in China, our customers include famous Chinese enterprises, such as Sinotruk, Weichai Power, etc. Our products are also exported to clients in such countries and regions as North America and Europe. We also welcome OEM and ODM orders.



Whether selecting a current product from our catalogue or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements.



To expand global business, a professional trading company, SHANDONG AUGUST I&E CO., LTD., was established in 2011, running as a subsidiary company under SHANDONG ZHONGGANG MACHINERY CO., LTD.



Another subsidiary: Shandong (Rizhao) Linyuan Carbon Co., Ltd. is a calcined petrolium coke factory, producing all kinds products for domestic and abroad markets. Indicates information has been verified onsite by a certification specialist