Inspection Gauge Of Drg No. T-3766, For Insulating Liner (Gfn/Hvn) Of Material Drg No. (T3702 , T-3706 To 3708).Gauges Caribarted From Rdso [ The Gauge Must Be Calibrated From Nabl Accreited Labs As Specified In The Drawings. The Gauges Should Also Be Got Verified By Sending Them To Rdso [Track Direct Orate (Inspection Unit)]. [ Warranty Period: 30 Months After The Date Of Delivery ] ]