单词channel iron
un.: 槽钢;槽铁;U形铁网络: 型铁矿
U形铁
槽铁
槽钢
B. The main frame is welded structural steel to which are bolted the channel iron lift support beams.
主体部分需要焊接钢支撑结构以便在此结构上用螺钉固定支撑支撑梁的槽铁。