Details: rp oil smr 100rp oil - it is required as a coolant of the rotary pump of fesem. this needs to be replaced once a year for better functioning of rotary pump and fesem vacuum system aperture ol (30, 50, 70, 110)aperture ol - this is objective lens aperture foil for selection of beam diameter. this needs to be replaced once a yea
Sector: Science University