Automotive Rubber Bellows (Automotive Bellows) is also known as rubber bellow seal rubber expansion joint and rubber dust boot etc. Rubber bellows and boots are often used in applications which require a secure and flexible seal around moving parts and components. Automotive Rubber bellows are very important component of automobiles, especially steering system of cars. which are used to protect. cover and enhance the service life of various machine parts such as shafts, guide ways, pistons, cylinders and more from dust and foreign particles. Automotive Rubber Bellows can be made by rubber compression molding, liquid silicone rubber injection molding and rubber extrusion molding.