为适应变截面汽车板簧用材所需，研制了一种低碳马氏体型弹簧钢。
A low carbon martensitic spring steel has been developed to meet the requirements of variable-cross-section plate spring for trucks.
用铸态马氏体高铬铸铁制造的沥青混凝土搅拌机衬板耐磨性是低合金白口铸铁衬板的14倍以上。
The high chromium cast iron can be used for lining board in asphalt concrete mixer. The abrasive resistance of the lining board is 14 times higher t...
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