... screw A word trough screw and bolts Titanium and Titanium alloy specifications: 1)Common Ground a, Bolt ... Gr12 2)Difference: a, Titanium for the chemical aspects,PCBequipment,electrodes. b, Titanium alloy used in Bicycle,Motorcycles, ... Electric Vehicles,Medical,Aircarft,Weapons etc. About factory: We are a main manufacturer specializing in titanium products for ...