SUPPLY OF TROLLEY FOR CHECKING OF EQUIPMENTS OVER ROOF FOR VANDE BHARAT TRAIN RAILING ON BOTH SIDES O/ D 1 inch & 2 mm thick MATI: M. S. PIPE IS: 2062, PLATFORM ALUMINIUM & MS ANGLE 40X40X4 thick WITH AL CHEQURED PLATE 5 mm thick, MS ANGLE SIZE 40X40X4 thick, TROLLEY MADE OF MS ANGLE SIZE 40X40X4 thick, 8