... Certification:ISO9001:2000 Hot-selling and best price screw A word trough screw and bolts Titanium and Titanium ... 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 ...