
Dental Gypsum-bonded Casting Investments For Gold Alloys
出版:Swiss Standards

专家解读视频
Establishes a classification of, and specifies requirements for, gypsum-bonded casting investments together with the test methods to be used to determine compliance with these requirements.
NFS 91 228 : 99 PR - Identical
ISO 7490 : 2000 - Identical
DIN EN 27490 : 1991 - Identical
DIN EN 27490 (1991-11) - Identical
ISO 7490:2000 - Identical