- fan coil units
          - AHU
          - cooling tower
          - air curtain
          - refrigeration condensing unit
          - refrigeration unit cooler
          - water pump

          - rotary compressor
          - scroll compressor
          - hermetic reciprocating compressor
          - semi-herm reciprocating
           compressor (air-con duty)
          - screw compressor
          - reciprocating compressor
           (refrigeration duty)

          - cooler
          - water-cooled condenser
          - coil
          - cooling tower parts

          - automatic switch
          - sensor
          - thermostat
          - DDC
          - valve and actuator
          - AHU/FCU valve & actuator
          - temperature and pressure control

          - expansion valve
          - direr, drier core
          - solenoid valve
          - muffler and oil separator
          - vibration aborber
          - liquid indicator

          - fan and blower
          - fan motor
          - air filter
          - damper and actuator

          - frequency drive
          - MCB
          - MCCB
          - contactor
          - capacitor
          - other electrical components

          - refrigerant
          - lubricant oil
          - cleaning chemical

          - cleaning equipment
          - vacuum pump
          - instrument
          - tool
          - refrigerant recovery machine

          - refrigeration accessories
          - grille and diffuser
          - copper tube
          - copper fitting
          - condensate pump
          - gauge