... GB/T,GJB,ASTM,ASM,DIN 3.customized as request metallic pure titanium flangestandard: GB/T,GJB,ASTM,ASM,DINmaterial ... equipment, metallurgical, chemical machine, petrochemicale. owning the right of exporting1.titanium managing license2.our flange diameter is special big3 ... This pure titanium is most common. The best combination of strength, ducility and weldability. – general engineering quality used ...