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See Chinese contents: GB/T 34370.11-2020 GB/T 34370.11-2020: Nondestructive testing of amusement equipments - Part 11: Ultrasonic guided wave testing
This part of GB/T 34370 specifies the ultrasonic guided wave testing and result evaluation methods for amusement equipment. This Part is applicable to the ultrasonic guided wave testing and result evaluation of amusement equipment components such as metal plates (including groove steels and square beams) with a wall thickness of 4 mm ~ 80 mm, steel pipes with a diameter of 16 mm ~ 2000 mm and a wall thickness of 2 mm ~ 80 mm, steel wire ropes and cables with a diameter of 12 mm ~ 185 mm, and pull rods with a diameter of 16 mm ~ 80 mm.
