... coating:Ir-Ta; 3.cathodic protection; 4.long time working life; 5.sample is available. Cathodic Protection Tank Used Ir-Ta Coated ... ,about 5kg per coil20 years lifetimeQuality Guarantee:(1)Main quality indicators: titanium substrate, precious metal ratio, accelerated life ... , including the surface treatment of titanium material, coating quality, coating evenness, coating binding force to the titanium ...