| http://www.w3.org/ns/prov#value | - The present invention is a method for producing a film containing a thermoplastic resin, the method comprising: a step of feeding a material containing a thermoplastic resin and having a pair of opposed flat portions to between a pair of rollers with the thermoplastic resin in a molten state, and a step of rolling, with the pair of rollers, the pair of flat portions being stacked, thereby welding
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