... , the material of the perfume machine is SS304 stainless steel, and the thermal material is PU. One set filtration ... set of box and evaporator, as well as φ20 stainless steel coil. Circulating system uses pneumatic diaphragm pump cycle, diameter: 1 / ... pressure, one batch operation button indicator, one piece stainless steel electrical control box Sanitary pipe connections: all use pipe connection ...