GB 9475-1988

Test method for granulometric distribution of alundum powder for vacuum tubes by density balance

STANDARD published on 1.1.1988

English, Chinese -
electronic design (pdf) (398.80 USD)

The information about the standard:

Designation standards: GB 9475-1988
Note: WITHDRAWN
Publication date standards: 1.1.1988
Country: Chinese technical standard
Category: Technical standards GB