Taper Plug Gauge For 6Fra6068 Type Tm As Per Rdso Drawing No. Skel-5032 Alt-0 Or La Test. During Delivery Of Material , Calibration Certificate Issued From Nabl/ Govt. Approved Test Lab. Mak E: Prasad / Pie / Ganapathy Or Equivalent [ Warranty Period: 30 Months After The Date Of Delivery ] ]