... ,gr3,gr7,gr12,gr5 specification :MAX:1300mm pure titanium machined ring:we are a professional manufacturer of titanium products ,we can ... reasonabloe price for you .Titanium and titanium alloy disc and ring GradeMaterial Supplying State ProductFormOuter diameter(mm)InnerDiameter(mm)Height(mm ... /35~140/>300~500/35~150/>500~600 /40~110/ Ring 200~400100~30035~12040~150>400~700150~50040~16040~250 ...