air-conditioning and refrigeration technician.

dear sir, i am abul kalam azad majumder(mustafa) i am a air-con and refrigeration technician. i am working in singapore. i have total more than 13years working experience in this field. i am expert in assemble and fabrication all kind of air-condition and refrigeration system. installation,testing,startup,pre-commissioning,commissioning,troubleshooting and
repairing the system and overhouling those air-conditioning and refrigeration compressores.
like those central system, package unit,windows type,spilt type and chiller type.
I am a safety supervisor.
if any owner need any technician please remember me.

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thank you very much.