1)Material:GR5 (Ti 6Al-4V). 2)standard: AMS 4928 3)surface:machined bright 4)Various sizes are available ... aviation, military, textile, sports, etc. We would offer you the AMS 4928 titanium rings with the highest quality.Metal parts with ... %≤50.80135931125862102550.80-101.601308961208271025101.60-152.401308961208271020We also offer AMS 4928 titanium block, titanium disc, titanium blank flange, and ...