tender for manufacture and supply of derailing switches 6400 mm over-riding curved (symmetrical splitlayout) derailing r.h. switch b.g. (1673 mm) for 52 kg on psc sleepers to rdso drawing number t 8153 withlatest alteration irs specification irs t 10 2000 fabricated switches with latest amendment if any complete withall parts as listed in the drawing but excluding grsp insulating liners ercs plate screws fish plates and fishbolts.
