GB 27995.2-2011

Semi-finished spectacle lens blanks - Part 2: Specifications for progressive power lens blanks

STANDARD published on 30.12.2011

English, Chinese -
electronic design (pdf) (274.80 USD)

The information about the standard:

Designation standards: GB 27995.2-2011
Note: WITHDRAWN
Publication date standards: 30.12.2011
Country: Chinese technical standard
Category: Technical standards GB