Standard:ASTM B265,GB/T 3621 Material: Gr1,Gr2,Gr3,Gr5,Gr9,Gr11,TA1,TA2,TA9,etc. ... Used in various types of titanium equipment. Material: Gr1, Gr2, Gr3, Gr5, Gr9, Gr11, TA1, TA2, TA9, TA10 ... golf), Used with other metals (copper etc.) composite sheet Titanium sheets