短语词组短语Type of steel Plate 钢板用途分类及各国钢板的工业标准包括日工标准及美材试标准Type of Rolled Steel 轧制钢种new type of steel 种新型的钢new type of light steel 新型轻钢龙骨new type of light -gauge steel 轻钢龙骨 返回 type of steel