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How many poles are there in ultrasonic flaw detection? What qualifications do you need to take the exam?
Ultrasonic, magnetic particle, penetrant and radiographic inspection are called nondestructive inspection. There are many categories of nondestructive testing in China.

For example, the demand of special equipment industry should be verified in the training center of special inspection institute; Petrochemical, electric power, aerospace, nuclear industry, machinery industry and classification society all have corresponding examination grades and cannot be mixed;

Generally speaking, it is divided into three levels, one, two and three, and it is enough to obtain secondary school education or above; Level 2 requirements 1 certificate, 4 years experience or bachelor degree in science and engineering; Level 3 requires two levels: level 2 and 4 years of work experience. Detailed query quality network

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