The first advantage of ROADDOG strings is that they have a very professional sound. The professionalism here is not simply a matter of how good the strings sound. The first basis of the strings is the science of the parameters and configuration, which ensures that the strings sound in harmony. This is why we have invested a lot of time in the research of the various materials, including the various contents and specifications of the steel and copper wires in the strings, the physical data of the materials, and even the strength of the windings in the string production process, as well as the physical and chemical details of the lamination process, which we have invested in our laboratory, after very detailed professional analysis and repeated experiments. The start of a new production process and configuration of ROADDOG strings is a very significant research breakthrough. We have a new understanding and standard of quality for strings, which is very exciting for us, just like a professional bartender, to make the best-tasting wine. After years of research and experiments, from nano-coating to PU polymer laminating process, to solve the fatal problem of string oxidation, in 2020 Road Dog launched the world's leading string laminating process, namely PVD ionic lamination, under vacuum conditions, using physical methods to vaporize the material into gaseous molecules, atoms or ions, and deposit them on the string surface to form a more protective film technology. Also, a special ratio of trace elements is added to the raw materials, which significantly improves the feel and tone of the strings, making them smoother and more comfortable, keeping their tone for a long time, and largely extending their service life. There are two main types of coating technology on the market today, the American exemplary coating material winding technology and the Chinese lacquer coating technology. The characteristic of the coating is that it is very smooth, which some players like, but some do not like it because it is too smooth. And the biggest disadvantage is the loss of the original softness of the string tone. The biggest advantage of the lacquer technique is that it is more economical, but the strings are not very protective and will only last for a short period. The PVD ionic lamination technology developed by ROADDOG is a breakthrough that extends the life of the string and increases its protection, making it more durable than the strings made by the two traditional processes, and at the same time, we have adjusted the smoothness to greatly improve the player's playing experience. This is a breakthrough in the world of lamination technology and opens up a new era in string production technology.