... tube,it save40-60% energy, comparing with thyristor,it save 20% energy; it save60% ... energy saving, high frequency than glass tube ceramic machine province electricity 50%5, welding some strong delicate ... body and head of welding between fixed good can;8, oxidation area is small;9, unique cooling circulation ... , heat treatment, brazing, etc Lathe tools with 16 KW high frequency welding welding machine