... .Grade:Gr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9,Gr12,Gr23 4.Specificat 1> Material : Gr1 ,Gr2 Ti-6Al-4V(Gr5), Ti-0 ... : Exceedingly high strength. High heat resistanceGr9: the most widely used in the golf clubs2> size : Dia2-450mm3> colour : metallic luster or ... ,Zr,Ni,Cu,Si,etc.5> applicationproducts are widely used in aerospace structural materials, such as aircraft, rockets, missiles and spacecraft ...