Box type building framework with excellent stability

The box type building framework with the excellent stability comprises a cross beam and supporting columns, butt joint plates are welded to the two ends of the cross beam, the supporting columns are distributed at the bottom of the cross beam, a mounting plate is welded to the tops of the supporting...

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Bibliographische Detailangaben
1. Verfasser: WEI QINGLONG
Format: Patent
Sprache:chi ; eng
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