Shipyard Transporter is a mechanical-electrical-hydraulic system based on the hydraulic suspension technologies and mainly used to transport heavy components. It integrates such techniques as the hydraulic drive, hydraulic suspension, independent steering and hydraulic auto leveling. Featured as strong load capacity and unique steering, it is widely used in the domains such as shipbuilding, highway, railway, oil field, airplane traction, metallurgy, as well as aviation, aerospace and military. At the beginning of 2004, with the development of heavy off-road vehicle and manufacturing technology,  the first WTW90 shipyard transporter was developed successfully. After 10-year development, Wanshan Company has produced over 40 types of the vehicle, forming A, B, C, G and Y series, where the load of single vehicle ranges from 35 tons to 1,000 tons, and the load will reach several thousand tons for the combination of multiple vehicles.