TECHNOLOGY FOCUS - POLYMERS - Preferred Components: At least 1 layer of a resin layer (A), a resin layer (B), and a resin layer (C) is a resin layer containing a white pigment. The resin layer (B) contains thermoplastic resin (I) having glass transition temperature of 120 degrees C or more, and a resin layer (A) and a resin layer (C) containing thermoplastic resin (II) having glass transition temperature lower than thermoplastic resin (I). The laminated component contains thermoplastic resin (II) which is aromatic vinyl-type resin (II-1) containing rubber reinforced aromatic vinyl-type resin (II-1-1) formed by polymerizing monomer (b) containing aromatic vinyl compound in presence of a rubbery polymer (a), and the (co)polymer (II-1-2) of monomer (b) which contains an aromatic vinyl compound. The rubbery polymer (a) is chosen from ethylene-( alpha )-olefin-type rubber, hydrogenated conjugated diene-type rubber, acrylic-type rubber, silicone system rubber and silicone acryl composite rubber. The laminated component contains thermoplastic resin (I) which is aromatic vinyl-type resin (I-1) containing rubber reinforcement aromatic vinyl-type resin (I-1-1) obtained by polymerizing monomer (ii) containing aromatic vinyl compound in presence of rubbery polymer (i), and the (co)polymer (I-1-2) of monomer (ii) containing aromatic vinyl compound. The laminated component comprises a protective layer (E) to the outer surface of the layer (A), or the outer surface of the layer (C). The thickness of a laminated body is 55-800 mu m. Further, the laminated component comprises the water vapor barrier layer (D) laminated between the outer surface of resin layer (A) or resin layer (C) and resin layer (B), or resin layer (B) and resin layer (C). The laminated component further has protective layer (E) as outermost layer of the layer (C). Preferred Composition: The content of rubbery polymer (a) is 5-40 mass parts with respect to 100 mass parts of aromatic vinyl-type resin (II-1). The aromatic vinyl-type resin (II-1) has 1-30 mass% of repeating unit derived from maleimide-type compound with respect to 100 mass% of aromatic vinyl-type resin (II-1). Preferred Property: The glass transition temperature (I) of thermoplastic resin (I) is 120-220 degrees C, and glass transition temperature of thermoplastic resin (II) satisfies specific relation: Tg(II) less than or equal to Tg(I)-10 degrees C. The thickness of a laminated component is 30-500 mu m.