
Mineral and sapphire watch-glasses. Qualitative criteria and test methods
出版:British Standards Institution

專家解讀視頻
Outlines the nomenclature of defects and the test methods to check them, with minimum physical and aesthetic requirements, for circular mineral and sapphire watch-glasses.
? British Standards Institution 2013
ISO 14368-3:2003 - Identical
ISO 14368-3 : 2003(R2014) - Identical
ISO 14368-3 : 2003(R2014) - Identical