An airfoil component and method for producing the component. An operator’s cab having a steering wheel is disposed at the upper frame. The curative system of this invention can be used to cure solid polyisoprene rubber that is used in a wide variety of application and is a particular value in curing polyisoprene rubber used in manufacturing sporting goods, healthcare, and medical products. The bias voltage source is coupled to at least one of the first electrode or the second electrode and provides a fixed charge to the electrode to which it is attached. This polypropylene resin composition exhibits excellent scratch resistance, rigidity, heat resistance, and impact strength and thus, it can be suitable for automobile interior materials such as glove box, console, center crash pad and the like.