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Corrugated beam-steel concrete roof-external prestressed combined T-shaped simply supported beam
- Categories:Patent Achievements
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- Time of issue:2021-03-19 14:59
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(Summary description)
Corrugated beam-steel concrete roof-external prestressed combined T-shaped simply supported beam
(Summary description)
- Categories:Patent Achievements
- Author:
- Origin:
- Time of issue:2021-03-19 14:59
- Views:
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