... 400liter/h7ml/h52×32×30(CM)37KG47This flame polishing machine electrolyze water into hydrogen, then we can use ... do polish, and welding. No pollution. Application:This machine especially used in Jewelry, Perspex, electronic, electrical machinery ... , silver and copper point, surface weldingSeal the glass bottle, widely used for medicine bottle sealing.LED ... mould repair and fusion. Flame polishing machine