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解决时间 2021-10-19 00:58
- 提问者网友：浩歌待明月
- 2021-10-18 14:22
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- 五星知识达人网友：天凉才是好个秋
- 2021-10-18 15:26
The external appearance and internal quality should be inspected 24 hours later after the low alloy steel is welded and the nondestructive testing should be conducted when the external appearance is qualified.
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