常见例句The author developed a new type composite hammer, of which the wear part was made from high CrMn abrasion resisting cast iron and handle was made of low C steel. 研制了一种新型复合锤头磨损部分用铸态高铬锰耐磨铸铁,锤柄用普通低碳钢。 返回 CRMN