... density, light weight. 4)high/low temperature resistance. titanium wires for glasses frame Material: Gr1,Gr2,Gr5,Gr7,Gr9 Specification:0.5 ... -6.0mm Certification:ISO9001:2000titanium wires for glasses frameMaterial:Gr1,Gr2,Gr3,Gr5,Gr5 ELI,TA1,TA2,TC4 ... , ductility and weldability.Grade 3. High strength Titanium, used for Matrix-plates in shell and tube heat exchangers.Grade 5 ...