GB/T 40383-2021商品级双辊铸轧热轧碳素钢薄钢板及钢带标准
英文:Hot-rolled twin-roll cast carbon steel sheet and strip of commercial quality GB/T 40383-2021介绍: 国家标准《商品级双辊铸轧热轧碳素钢薄钢板及...
英文:Hot-rolled twin-roll cast carbon steel sheet and strip of commercial quality GB/T 40383-2021介绍: 国家标准《商品级双辊铸轧热轧碳素钢薄钢板及...