titanium foil GR1 GR2 GR5 Thickness : from 0.001 to 0.1. Application: in industry and Medicine Annealing. GR1 Titanium foil titanium strip GR1 GR2 GR5Thickness: 0.001 --0.1mm Application: General use ,industry,chemical,power plant,oil,gas,medical,spaceflightAnnealing Standard ASTM B265Titanium Foils: ASTM B265; GR1, GR2, GR5,