A composite cable for a vehicle is configured to connect between a wheel-side device which is fixed on a wheel side via a suspension device with respect to a body of the vehicle and a body-side device disposed on a body side. The traveling device for crawler type heavy equipment includes a variable orifice shifted to intercept the supply of the hydraulic fluid toward the traveling device in response to the signal pressure in the combined working mode if a load pressure of the working device is relatively higher than that of the traveling device. They are also useful for application to various poor weathering structural plastic articles for preparing multi-layered composites having improved weatherability. With this configuration, the pre-driver layout area can be reduced, and the cost of IC can be reduced.