冷轧碳素结构钢带
cold-rolled carbon constructional steel strip
热轧碳素结构钢带
hot rolled carbon constructional steel strip
碳素结构钢板
carbon constructional steel plate
优质碳素结构钢
carbon constructional quality steel
High quality carbon structural steel
improved carbon structural steel
优质碳素结构钢板
carbon constructional quality steel plate
碳素结构方钢
carbon structural square steel
碳素结构圆钢
carbon constructional round steel
优质碳素钢和合金结构钢
quality carbon steel and alloy structural steel
低碳结构钢
low-carbon structural steel
mild grade structural steel
low-carbon structural steels
mild structural steel
软中碳结构钢
soft medium structural steel
碳结构钢用电焊条
electric welding rod for carbon construction steel
中碳结构钢
medium carbon structure steel
medium carbon structural steel
medium-carbon structure steel
medium carbon constructional steel
钢结构构件拓扑优化
steel structure topology optimization