China 'HB 8423.5-2017
' Industry standard english version:
HB
中华人民共和国行业标准
INDUSTRY STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
HB 8423.5-2017
Metal material grade identification method Part 5: Identification of high-speed tool steel grade by looking at the spectrum 金属材料牌号鉴别方法 第5部分:看谱法鉴别高速工具钢牌号
Issued Date:2017.4.12
Implemented Date:2017.10.1
Issued by:
The Standardization Administration of the People's Republic of China
GB Standard Code
HB 8423.5-2017
Standard Category
China Aviation Industry
Standards
GB Standard English Title
Metal material grade identification method Part 5: Identification of high-speed tool steel grade by looking at the spectrum