Soundproofing and vibration-damping materials for vehicles, namely, sheets, mats, foils, and rolls made of butyl rubber, foam, and other synthetic materials for automotive sound and heat insulation; acoustic insulation for car interiors; noise-reduction layers for vehicle panels, doors, trunks, and floors; adhesive vibration-damping sheets for metal and plastic surfaces; multilayer automotive soundproofing materials sold for installation and retail use