low-alloy steel短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 低合金钢 Our products: Various gray iron, ductile iron, common cast steel, low-alloy steel, high manganese steel, etc various parts of architectural and mechanical engineering. 本公司主要生产各种灰铁件、球铁件、铸钢件、高猛钢件等各种建筑、工程机械用零部件。 kuenglish