bids are invited for material code: w90311928820 unit oil purification system for lara unit-1 & 2 project , material code: w90311928838 oil purification system (central) , material code: w90318103427 seperator motor for lub oil purifier , material code: w90318103168 rtds for oil purification unit: 1 no. each type and range , material code: w90318103150 pressure switch for oil purification unit: 1 no. each type and range , material code: w90318103265 mandatory spare for dps across polishing filter of oil purifier , material code: w90318103192 level switch for oil purification unit: 1 no. of each type and range , material code: w90318103290 mandatory spares for flow switch of oil purifier unit , material code: w90318103176 pressure indicators for oil purification unit: 1 no. each type and range , material code: w90318103184 temp indicator for oil purification unit: 1 no of each type and range , supervision during erection and commissioning required of oil purification unit , performance test of particle size of impurities for lube oil (iso vg-46) as mentioned in sl. no. 5(a) total quantity : 21