No. 131435

1207

国家或地区巴西
标准体系NBR

对应标准

ABNT NBR NM 149:1998Free cutting steels, normal quality, for general uses in mechanical construction
- 化学成分
- 力学性能
ABNT NBR NM 87:1996Carbon steel and steel alloy for general engineering purposes - Designation and chemical composition
- 化学成分