supply of insulated rail dolly with attachment for carring concrete sleeper and rails for bg as per rdso specification no. tm/sm/24 dt.25.11.1993 or latest. make:-kelvin or rajasthan mining or chandra industrial or similar. (technical specification 1.tubular frame : made of mild steel heavy duty pipe of normal bore 40 mm 25 mm as per required tolerances . 2. chain : made of alloy steel. 3. hook bolt : made of high carbon steel 4. gusset plate : made of ms flat or ms plate 5. wheel assembly : far track circuited area : assembly shall consists of two double flanged wheels with cast steel duly insulated the hubs to accommodate the shaft and bearing.)insulated rail dolly with attachment for carring concrete sleeper and rails for bg as per rdso specification no. tm/sm/24 dt.25.11.1993 or latest. make:-kelvin or rajasthan mining or chandra industrial or similar. (technical specification 1.tubular frame : made of mild steel heavy duty pipe of normal bore 40 mm 25 mm as per required tolerances . 2. chain : made of alloy steel. 3. hook bolt : made of high carbon steel 4. gusset plate : made of ms flat or ms plate 5. wheel assembly : far track circuited area : assembly shall consists of two double flanged wheels with cast steel duly insulated the hubs to accommodate the shaft and bearing.),insulated rail dolly with attachment for carring concrete sleeper and rails f or bg as per rdso specification no. tm/sm/24 dt.25.11.1993 or latest. make:-kelvin or rajastha n mining or chandra industrial or similar.(technical specification 1.tubular frame : made of mil d steel heavy duty pipe of normal bore 40 mm 25 mm as per required tolerances . 2. chain : made of alloy steel. 3. hook bolt : made of high carbon steel 4. gusset plate : made of ms flat or ms plate 5. wheel assem bly : far track circuited area : assembly shall consists of two double flanged wheels with cast steel duly ins ulated the hubs to accommodate the shaft and bearing.) [ warranty period: 12 months after the date of d