WDC Acquisition LLC specializes in complex aluminum and magnesium sand castings for military and commercial applications. Pri ... mary end use applications are helicopter transmission housings and front frames for commercial aircraft. WDC is AS9100, ISO9001 and NADCAP certified for all special processes, including heat treatment, radiographic processing, fluorescent penetrant inspection, welding, and material testing. Our castings range in size from 1 pounds up to 650 pounds. read more