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Continue to ChatCAD Tip: What you need to know about IGES and STEP files http://s-star.org/cad-tip-what-you-need-to-know-about-iges-and-step-files/
CAD Tip: What you need to know about IGES and STEP files http://s-star.org/cad-tip-what-you-need-to-know-about-iges-and-step-files/