在冷弯薄壁型钢结构中，为了降低层高而让管线从梁中通过，在梁和柱的腹板及翼缘中常需要开孔洞。
In cold-formed steel structures, we need to open holes on flange and web of beams and columns for the purpose of getting through the pipeline.
冷弯薄壁型钢是轻钢结构的主要构件形式。
Cold-formed thin-walled steel members are the main member of light steel structure.
冷弯薄壁型钢是轻钢结构的主要构件形式。
Cold-formed thin-walled steel members are the main member of light steel structure.
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