Rockbestos-Surprenant Cable Corp., Clinton, Mass., bought all assets of PMC Corp., a wire and cable manufacturer in Manchester, N.H. The acquisition improves Rockbestos-Surprenant's position in thermocouple wire and cable.

PMC makes thermocouple and extension wire and cable products. Rockbestos-Surprenant, a member of The Marmon Group Inc., Chicago, manufactures control, power, instrumentation and thermocouple tray cables as well as armored cable and critical circuit cables.