Transportation Home About Us Mission Contact Us Sales Brochures Certifications Connector Products, Capabilities and Services for Rail Transportation ClementsNational is a leading... connector manufacturer and supplier of electrical interconnect products designed for passenger rail, commuter high speed rail, commuter light/heavy rail transit, locomotive... pin communication/MU jumper and receptacles, circular, heavy duty power and control transit rail connectors (threaded, bayonet), custom junction box/control panel assembly/repair...