专业用钢和精品钢材
焊接结构钢碳结钢 ZG200-400H C22041 ZG230-450H C22346 ZG275-485H C22849
熔模铸造用碳素铸钢 RZG200-400 RZG230-450 RZG275-500 RZG310-750 RZG340-640
大型铸件用低合金铸钢 ZG30Mn C30300 ZG40Mn C30400 ZG40Mn2 C40400 ZG50Mn2 C40500 ZG20Mn(ZG20SiMn) c42200 ZG35Mn (ZG35SiMn) C43520