Shandong Zhengyang Machinery Co., Ltd. was founded in 2004, after many years of integrity management, currently has a group of companies Shandong Zhengyang Machinery Co. Based on the special automobile industry, the group company provides axles, suspension, brake drums, wheel hubs and other ancillary products and services, and can provide one-stop products and technical services for the chassis travel system of special vehicles.

The company has launched "ZY Lightweight Axle Active-Passive Safety System" and "Special Vehicle Active Control Air Spring Suspension System" to provide customers with safer lightweight products and services, and has initiated the establishment of Shandong Special Vehicle Industry Intellectual Property Rights Protection Union together with 27 special vehicle and spare parts enterprises, which has played a great role in promoting scientific and technological innovation and intellectual property rights protection.