The products you mentioned are all the same thing, which is a titanium base material coated with platinum, and some people call it platinum. Titanium substrates come in different shapes, so the anodes also come in different shapes, such as plates, meshes, rods, tubes, wires, etc. Suzhou Primus, our company has used their platinum-coated titanium anodes and platinum-coated niobium anodes, and their products are good. I have dealt with them before, and I heard from their company's technology that their production process seems to be purchased from patented technology, it is electroplated, and it is made of pure platinum. The purity of the platinum coating is very high, it seems to be 99.99%, and the service life of the anode is still very good. The platinum-plated products produced by some factories are painted and baked, and what kind of platinum acid is used. You should ask clearly when purchasing.
Your production process should be a mixed metal oxide coating anode, because there are liquid preparation, brushing, baking, etc., such as iridium coating and ruthenium coating.