pisini008 发表于 2018-1-18 15:12:25

ASNT - Visual Testing Method - Questions and Answers - Level I, II, III

ASNT 3级目视检测 习题及答案ASNT - Visual Testing Method - Questions and Answers - Level I, II, III

PZP 发表于 2018-1-22 15:59:49

三级比较难了。谢谢分享，点个赞!
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