... made of titanium, zirconium, SUS304 and SUS316 stainless steel tubes. Single tube metal heater (1). Made of titanium, zirconium, SUS304 and ... the crystal on the heaters surface after cooling. (4).The series of ø45mm tubes diameter made with low surface power, it ... . The voltages have 120V, 240v, 380v, 415v and 480v, single-phase and three-phase (according to clients requirements), Power range from 0.5kw ...