Profile: Pepco Manufacturing Company offers custom sheet metal, data/telecommunication enclosures and accessories. We are accredited with ISO 9001:2000 certification. Our standard line enclosures include wall mount, open relay racks and zone 4 seismic cabinets. Our enclosure division produces frames, shelves, specialty cabinets and accessories. We also specialize in cold roll steel, hot roll pickled in oil, stainless steel, copper, brass and aluminum sheet metals.