Emergency Phone Preventive Maintenance at Don Muang Tollway
Global Instech., Ltd. Proceeded with the preventive Maintenance for 99 sets of “DAC” Emergency Phones,
Model “RA711GSM”, the product from England for DonMuang Tollway Public Company Limited
on 18th April-10thMay 2022.
Model “RA711GSM”, the product from England for DonMuang Tollway Public Company Limited
on 18th April-10thMay 2022.