GB/T 13511.4-2025

Assembled spectacles—Part 4: Multifocal and power-variation near-vision spectacles

NORM herausgegeben am 28.2.2025

English, Chinesisch -
Elektronische PDF (290.50 EUR)

The information about the standard:

Designation standards: GB/T 13511.4-2025
Publication date standards: 28.2.2025
Country: Chinese technical standard
Kategorie: Technische Normen GB