Do nondestructive testing points of steel structures need to be covered by welders?

Need. Steel structure, chemical pipeline engineering and chemical storage tank engineering in construction engineering. Steel plates need to be welded together. Non-destructive testing is to detect the weld of steel plate through X-ray detection, ultrasonic detection, magnetic particle detection, penetrant detection and other detection technologies to ensure that there are no defects and ensure the engineering quality. NDT of steel structure welds must cover 65,438+000% to ensure that the whole project is defect-free. Non-destructive testing needs to participate in the whole welding project, but aerial work slows down the testing speed.