| http://www.w3.org/ns/prov#value | - The method of producing an article with a foamed surface according to the present invention has step 1 of forming small pores in a surface of a base made of a plastic to produce a base with small pores; step 2 of immersing the base with small pores, obtained in step 1, in a solution including a foaming agent to prepare a foaming agent-including base; step 3 of immersing the foaming agent-including
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