water cutter, HOG-400, 400L/hr, oxyhydrogen gas 2. 10 years lifetime ... years lifetime, very durable to use!Technical Data Model No HOG-400Gas output flow( liter/hr) 400Gas output pressure<0 ... Jewelry soldering and melting 2. Glass flaming polishing3. Small enamelled wire welding4. Quartz glass tube sealing ( out diameter less than 10mm ... 8. Optical fiber welding9. Other flam process water cutter HOG-400