【化】 钢架steel frame
电热钢筋镦头机electron-heating steel bar header【机】
钢种steel grade
克虏伯型渗碳钢Krupp-type carburizing steel
镀锌钢管galvanized steel tube
【化】 圆钢round steel
圆角等边角钢equal angle steel with round edge
铅包钢带铠装电话电缆steel-tape armoured lead sheathed telephone cable