1. Precision Measurement: The test block features a 6-step design with thicknesses ranging from 1mm to 20mm, making it an essential tool for accurate ultrasonic calibration and testing. 2. High-Quality Material: Crafted from 1018 steel, this test block ensures longevity and reliability in various testing environments, providing consistent performance over time. 3. Standard Certification: This test block is standard certified, ensuring that it meets industry requirements for ultrasonic calibration, making it suitable for professional use in laboratories and inspection facilities. 4. Compact Size: The test block is compact and easy to handle, allowing for convenient storage and transport while still delivering precise measurements. 5. Versatile Applications: Good for thickness testers, the test block can be used across various industries, including manufacturing, quality control, and research, making it a versatile addition to your testing equipment., Manufacturer: ZXZZAS