Abstract: A deep drawing process, comprising melt-softening a resin sheet obtained from a resin composition comprising:(a) from 15 to 82% by weight of a propylene-series resin,(b) from 15 to 82% by weight of an ethylene-series resin, and(c) from 3 to 50% by weight of carbon black, each based on the total amount of the components (a), (b), and (c), and(d) from 1 to 50 parts by weight, per 100 parts by weight of the total amount of the components (a), (b), and (c), of an inorganic filler,at a temperature not lower than the melting point of the propylene-series resin and molding the softened resin sheet by differential pressure molding or press molding, wherein the resin sheet is molded at a draw ratio of from 2.0 to 3.5.