Patented fixing technology: full body rivet fixation. If you have ever used a parabolic screen filter, you will definitely be troubled by a problem. As the working time increases, the fluid will corrode the body of the equipment. Welding joints, in particular, are most susceptible to corrosion. After the weld bead is corroded, it indicates that the service life of the parabolic screen has begun to count down. For this reason, we developed a new fixing technology - rivet fixing method. We conducted a lot of experiments and finally came up with the best rivet fixing solution. This type of fixation has two advantages. The first is that it is not afraid of corrosion and has a solid structure. The second advantage is that the fuselage can be disassembled to facilitate subsequent maintenance.