... silver soldering, brazing; 3, Soldering of composite pot is mainly used for round, square and other ... shaped surface stainless steel pot with three-layer aluminum brazing can also be ... . 4, Welding of an electric kettle (electric coffee pot) of hot plate is mainly used for stainless ... with SCR-IF;5, safe, reliable, no million-volt high-pressure, very safe for the operator;6, ...