| http://www.w3.org/ns/prov#value | - Even the lowest cost machines, such as Z Corp.???s ZPrinter 310 and Stratasys???s Dimension, can be used to produce patterns for tooling, but Wohlers cautions that the surfaces of such parts need a lot of work to look good. ???Typically, they would require such steps as filling and sanding of the surface so that it is not porous.
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