Eddy Current Tubular Node Weld Flaw Specimen-ET (Metric Version) Eddy Current Tubular Node Weld Flaw Specimen-ET-ECT ET Weld Specimen Specially made for Surface Eddy Current Testing with embedded flaws & amp; coated with primer, epoxy paint & amp; Teflon, TKY Joint Tubular Nodes. Geometry: Dihedral Angle 35? Main Pipe Segment 500mm Dia. 20 to 25 mm WT & Branch 150mm Dia. And 12mm WT. Flaws: 3 per specimen, randomly placed Specimen Tolerance: +/- 0.080" Documentation: NDT Verification Reports, C of C, CAD Drawings and Test Sheets. Material: Mild Steel