... as substrate. Mixed metal oxides like platinum, Ru, Ir, Ta, Ru-Ir, Ir-Ta coated.2. Techniques in Producing: Sand blasting and ... acid washing for substrate's treatment. Brush painting for the MMO coating ... rod/wire, tube/pipe, etc. 5. Components: Substrate, MMO coating, terminal, conflux boards.6. Working Parameters: Current density≤2000A/M2 ...