casting impregnation, die casting impregnation, impregnation, organic impregnation,mil-std-276, resin impregnation, vacuum impregnation, casting porosity repairs, leakproof castings, pressure tight castings,casting leak repairs, powder metal impregnation, casting porisity sealing, porosity sealing of metal parts, casting impregnation dallas texas, casting impregnation texas, metal casting impregnation, impregnation metal castings, powdered metal impregnation, aluminim casting impregnation, leak testing, vacuum, pressure

casting impregnation job shop and manufacturers of dc electrical relays, controls, power cables, receptacles and control devices."

332812

Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers

332813

Electroplating, Plating, Polishing, Anodizing, and Coloring

333618

Other Engine Equipment Manufacturing

335314

Relay and Industrial Control Manufacturing

335931

Current-Carrying Wiring Device Manufacturing

335999

All Other Miscellaneous Electrical Equipment and Component Manufacturing