| http://www.w3.org/ns/prov#value | - Stencil opening by the use of this stencil sheet is usually conducted by positioning the thermoplastic film of the stencil sheet in close contact with an original manuscript wherein letters, figures, patterns, etc., are written in printing inks containing light-absorptive substances such as carbon, and then directing radiations rich in infra-red upon the stencil sheet by means of a heat-sensitive
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