... wirea. Bright surface(silvery white)b. Acid cleaned surface(gray)c. Black rust surface usea. Welding wireb. Fastenc. Hanger, ... square bar, titanium tube and titanium pipe and titanium wire, titanium foil and titanium coil, titanium fastener, titanium ... titanium disk, titanium mesh plate, titanium clad cooper plate, titanium copper rod, titanium cool pipe, titanium complex plate, titanium elbow, ...