master ac - Mitra Selaras Abadi specialist air conditioner and comercial refrigerator.1.service,repair,install air conditioner : vrf type,perecision,split duct,marine type,etc2.service,repair,install comercial refrigerator : chiller,cold storage,blast freezer,deep freezer.3.overhaul compressor : open unit,screw type,semi hermatic (bitzer,coupland).4.service,repair cooling unit industries : rittal,sarel.5.manufacture acecories air conditioner : diffuser,linier slot,RAG,SAG,Damper,roud diffuser