Assertion: normal enamel | /r/ObjectUse | used on copper
Facets:
Source sentences:
text: The normal enamels used on copper are compatible, however those with lower expansions should be carefully observed, especially when coating the lower alloys.
text: As little as 4% zinc lowers the solidus point enough to prohibit the use of normal enamels used on copper.
text: Normal enamels used on copper are not suitable on this alloy.
text: Hastelloys A, B, C, & D are compatible with enamels from the lower end of the expansion range of normal enamels used on copper, while Hastelloy F & X are compatible with enamels from the higher end.