procurement of gear box for ntpc projects procurement of gear box for ntpc projects , gb:n.allenbery:csb:450:comp assy , gb:csb:450:hold back#200: , hold back#180, for gb:csb-560;new allenbr , :n.allenberry:ckc-500:hold back#480 , gb:csb-315:hold back#180: , gear box assy.: r-113w;new allenberry , gb:r73v:compl gear box r73v :gr-30.5 / 1 , gb:n.allenbery:r53v:comp assy , gb-new allenberry-5som - complete assy. , gear box:ckc315 comp assy new allenberry , :n.allenberry:ckc-355:comp assy , :n.allenberry:ckc-500:compl assy , gb:new allenberry:csb-315:comp assy: , :n.allenberry:ckc-225:comp assy , :n.allenberry:ckc-355:comp assy , gb:csa-280:comp assy , gear box:ckc280 comp.assy.new allenberry , gear box:ckc315 comp assy new allenberry , :n.allenberry:ckc-355:comp assy , :n.allenberry:ckc-500:compl assy , gear box-new allenberry-ckc-160, gr-40:1 => limited