TMTeck UT Aluminum Test Block& Calibration Thickness Block 4 Step 0.25"0.5"0.75"1" Inch with ABS Carrying case Ultrasonic Calibration Block Step Wedge

UT Aluminum Test Block& Calibration Thickness Block 4 Step 0.25"0.5"0.75"1" Inch with ABS Carrying case Ultrasonic Calibration Block Step Wedge with Certificate

TMTECK Step Block 1018 Steel Calibration Block for Thickness Gauge 5 Step 0.1"0.2"0.3"0.4"0.5" UT Step Wedge with ABS Carrying case and Certificate

4 Step UT Block 1018 Steel Test Block 0.25''-0.5''-0.75''-1'' Step Wedge Calibration Block Conform to ASTM E797with ABS Carrying case and Certificate