低温成形轻量型钢构件 structural steel member: 结构钢构件light gauge steel: 轻量型钢; 轻型号规钢light gauge steel construction: 轻量型钢结构light gauge steel framing: 轻量型钢构筑框架light-gauge steel section: 薄壁型钢下载手机词典可随时随地查词查翻译