Stromag Engineers Ltd. Offers Bolted Joint Individual Conductor Bar System. Stromag Engineers Ltd. Also manufactures Single pole individually insulated conductors, single pole PVC housing, tepeofrm copper conductor, multi conductor, pvc hosing Bolted Joint Individual Conductor Bar System is made up of single pole, individually insulated Conductors. The Bolted Joint Individual Conductor Bar System is used for power transmission and is used for EOT Cranes etc. Bolted Joint Individual Conductor Bar System provides a safe & economical supply of electric power for track guided Mobile machinery.