Tender For corrigendum : tender for supply of bottom ash hopper feed gate spares : : - as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description , as material description