... unable to bear mechanic external force.Single-core cable forbidden to be laid in magnetic pipes.YJLValuminum ... , PVC sheathed cableSuitable for laid indoors, tunnel, cable trench, Silo and directly burial with a certain ... wire armored, PE sheathed cableYJCVcopper-clad aluminum conductor, XLPE insulated, PVC sheathed, power cable YJCV22copper-clad aluminum conductor, XLPE insulated, PVC sheathed ...