supply of supply of 1.torque master tm 500r(135-675nm-15nm scale) along with socket inner diameter - 41mm (warrant period: 30 months after the date of delivery.2. high performance rail cl s compatible with ir fish plates rdso drg no rt-5916 &rt-3714 for 60 kg , torque master tm 500r(135-675nm-15nm scale) along with socket inner diameter - 41 mm (warrant period: 30 months after the date of delivery [ warranty period: 30 months after the da te of delivery ] ] , manufacturing and supply of rdso approved high performance rail clamps compatible with ir fish plates rdso drg no rt -5916 & rt-3714 for 60 kg rails for speed potential upto 50 kmph with all fittings and fixtures required for hprc fixing as per rdso approved drawing and specification f or the hprc with latest correction slip till the date of opening of the tender [ warranty period: 30 mo nths after the date of delivery ] ]