... 20-29mm Titanium RingsGr1 titanium rings for jewelry, Gr5 titanium rings for pipesGrade: Gr1 titanium rings, Gr2 titanium ring, Gr3 ... , Gr5 titanium ring, Gr7 titanium ring, Gr9 Titanium rings, Gr11 titanium ring, Gr12 titanium ring, Gr23 titanium ... ISO9001:2000Application: Chemical processing, medical instruments, decoration fields.Packing: Wooden case and simply package or according to customer' ...