Details continue to improve: Commercial Vehicle Cab modeling more innovative, more extensive (flattened and high roof), a lower drag coefficient, interior equipment more humane, live better, more comfortable ride. 385 cab so visible, lightweight design as one of the core technology trends of commercial vehicle cab. Whether for economic considerations or requirements of sustainable development 485 cab, lightweight are necessary. In today's fierce competition in the market 3200 cab, only continue to reduce production costs, improve product performance, advanced design concepts and design tools applied to design, maintain product innovation and technological innovation, so that enterprises in an invincible position . Truck forms, heavy truck cab symmetrical "vibration model" to build up two-dimensional coordinate system / axis positive direction backward axis positive direction 'model of the human body by the driver as a rigid body% + cab + engine + car rack + - Quality co-sprung mass at the front and rear suspension and after a discrete '# a particle composition' vibrational degrees of freedom for the cab + chassis + vertical displacement of the engine and pitch angular displacement + body + front and rear suspension spring Quality and vertical displacement under each carrying a total mass'! Freedom Rigid frame and particle motion to consider the elastic bending vibration to the second stage until the total 'one degree of freedom' input uneven ground displacements entered by the front and rear wheels. 1402 cab, Jinan Yiu Cheung (certification), the cab is provided by Jinan Yiu Cheung Trading Company. Jinan Yiu Cheung Trading Company (www.jinanyaoxiang.com) Shandong Jinan, engine assembly leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Jinan Yiu Cheung leadership with the staff warmly welcome all inquiries negotiations to create the Jinan Yiu Cheung better future.