Lankai 115 Kv Expansion Construction, 1 Circuit For Supplying 115 Kv Electricity To Pea (2Nd Circuit), Demolition Of Existing Buildings, Consisting Of Construction Area Adjustment, Electrical Equipment Foundation Construction, Cable Construction Trench, System Work Grounding, Special Expenses According To Regulations, Etc. At High Voltage Substations Nakhon Ratchasima Province According To The Application For Employment (Pr) 1200176234 (EXPIRED)