STEAD Brand Wirewound Sliding Rheostats are spaced wound with best quality Cu/Ni or Ni/Cr Alloy Resistance Wire having very low temp. Co-efficient and wire is protected with high temp. Resistance Compound. The winding is done on vitreous enameled drawn steel tubes, fitted with aluminium die casted stands/fabricated steel stands. Phosphor Bronze or Self Lubricating Copper Graphite Contacts are fitted on brass slider, Slides on solid drawn brass rods.