CO Common
PI Piping
AR Archietcture
EL Electrical
CV Civil & Instrument
CI Control & Instument
MP Mechincal Power Plant
SF Safety & Fire Fighting
MR Michancal Rotating
MS Michanical Stationary
HV Heating ventilation & Air Conditioning
PR Process
EM Engineering Management
EN Environment
FF Fire Fighting
NU Nuclear
PS Process Safety
QC QA & QC
