bids are invited for b and d spares for asw swc boat davit project ((3 3 )) 21 lakh (s) ball bearing slew ring , high pressure variable displ piston pump , unloading manifold , check valve , ventable relief valve , 24v dc on off valve , bell housing , coupling , pvg directional control valve , service kit for pvg 16 , wired remote , joysticks , wire rope 20mm , manhole cover rubber , hydraulic hoses different sizes , ab plc micro logix 800 with prog and calibration , directional control valve controller , hoist winch lower limit contrlr and manifold , slew drive with pinion of manifold , luffing cylinder manifold with cartridge valves , , 4.5 m rubberised inflatable boat (rescue boats) total quantity : 53