ITI Book Mechanic Refrigeration Air Conditioning Theory I, II Year is by Manish Sharma. Mechanic Refrigeration Air Conditioning Theory I, II Year is according to Latest NSQF Level. Mechanic Refrigeration Air Conditioning Theory I, II Year is according to latest syllabus of DGT(NCVT). Mechanic Refrigeration Air Conditioning Theory I, II Year is for I Year, II Year. Mechanic Refrigeration Air Conditioning Theory I, II Year is for ITI trade Mechanic (Refrigeration and Air-Conditioning) .