片语
ordinary carbon steel plate普碳钢板
ordinary structural steel结构用普通钢
ordinary carbon steel普通碳钢
ordinary finished steel plate普通加工钢板
ordinary cutting steel普通切削钢
Ordinary twisted steel普通钢绞线
ordinary speed steel普通高速钢
ordinary alloyed steel普通合金钢
ordinary tool steel碳素工具钢