8‑Step Thickness 1-2-3-4-5-6-7-8MM Ultrasonic Testing Calibration Reference Block Copper Alloy

8‑Step Thickness 1-2-3-4-5-6-7-8MM Ultrasonic Testing Calibration Reference Block Copper Alloy Precision 5-step calibration block manufactured from Copper Alloy, designed for accurate calibration of ultrasonic thickness gauges. Features four distinct thickness steps for comprehensive testing and verification. Product Features 8-step calibration block for ultrasonic thickness gauges Four distinct thickness steps: 1-2-3-4-5-6-7-8MM Manufactured from precision Copper Alloy