Fertilizer and dry powder mixers can be customized with carbon steel, manganese steel, 304 stainless steel, 316L stainless steel, 321 stainless steel, and other materials, and different materials can also be used in combination; When selecting equipment materials, distinguish between parts that come into contact with the material and parts that do not come into contact with the material; Functional coatings or protective layers such as anti-corrosion, anti bonding, isolation, and wear resistance can be added specifically to the interior of the mixer; Surface treatment of stainless steel includes sandblasting, wire drawing, polishing, mirror finish and other treatment methods, which can be applied to different parts of use;