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eDrawings Software - Free software download that lets you view and print eDrawings (eDRW, ePRT, eASM), native SolidWorks documents (sldprt, sldasm, slddrw), DXF and DWG format files.

Roymech engineering reference data - This site provides useful information, tables, standards, schedules and formula related to mechanical engineering and engineering materials. It provides convenient access to data for design engineers and engineering draughtsmen.