Supply of Spares for APH soot blower, Reduction Gear Box, Model AOD 237, Sl.No.:Ratio4900:1, Secondary Wheel shaft for APH soot blower reduction gear box, Model no- AOD-237, Velocity ratio- 4900:1, Make- Premium Transmission Ltd., Secondary worm shaft for APH soot blower reduction gear box, Model no- AOD-237, Velocity ratio- 4900:1, MakePremium Transmission Ltd., Primary worm wheel for APH soot blower reduction gear box, Model no- AOD-237, Velocity ratio- 4900:1, Make- Premium Transmission Ltd., Primary worm shaft for APH soot blower reduction gear box, Model no- AOD-237, Velocity ratio- 4900:1, Make- Premium Transmission Ltd., Secondary worm wheel for APH soot blower reduction gear box, Model no- AOD-237, Velocity ratio- 4900:1, Make- Premium Transmission Ltd.