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Material: 20#
Measuring range: ≥6-40mm
Transverse hole depth (transverse wave detection): 5, 10, 15, 25, 35 (mm)
Transverse hole depth (longitudinal wave detection): 5, 10, 15, 20, 30, 40 (mm)
Conforms to standard NB/T47013
The test block is designed according to ultrasonic testing requirements on pressure-bearing welded joints (Type I)
Applicable to tests on welded joints (Type I) by oblique probe and straight probe with work piece thickness range from 6mm to 40mm
