... Gr4,Gr5,Gr7,Gr9 3.Standard is DIN,GB gr5 titanium alloy screwTitanium screw/nut/boltMaterial is Gr1,Gr2,Gr3,Gr4, ... . can develop according to your drawings or samplesC . titanium and titanium alloy suppliedTitanium is now becoming used in a wide range of ... resistance.We are the manufacturer that special in producing titanium tube and other titanium products.If you are interested in our products, ...