| http://www.w3.org/ns/prov#value | - ilm material from a supply of flexible film material to said tubular forming means for formation of said tubular bag within said tubular forming means; means for enabling filling of said tubular bag with a product to be introduced into and contained within said bag; means for sealing said bag, including said longitudinally extending edges of said flexible film material, so as to retain a product,
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