No. 131459
1046
- 国家或地区
巴西 - 标准体系NBR
对应标准
- ABNT NBR 6915:1991Steels for die hot forging - Specification
- ABNT NBR 9769:1996Normalization heat treatment of rolled or forged carbon steel or steel alloy bars
- ABNT NBR 6330:1980Cold-rolled carbon steel wire rod for heading and general use
- ABNT NBR NM 87:2000机械建筑用碳钢和合金钢标注和化学成分
- ABNT NBR NM 87:1996Carbon steel and steel alloy for general engineering purposes - Designation and chemical composition