Supply of auto dialling system from emergency socket with base unit ,way side telephone ,12v / 7 ahbattery with charger. attched rdso spc. irstc 83-20 version - 1.0 date effective - 19.05.2021
Supply of auto dialling system from emergency socket with base unit ,way side telephone ,12v / 7 ahbattery with charger. attched rdso spc. irstc 83-20 version - 1.0 date effective - 19.05.2021
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