... jet facial machines,facial machine,beauty equipemnt,beauty machine,skin care product. Operation Theory The Almighty oxygen jet ionizes ... of the chemical plating.A: Respiratory system----rhinitis, faucitis, catchcold,etc.;B: Neural system----neurasthenic, insomnia, migraine, etc.;C ... : Blood----leucopenia;D:Digestive system----coprostasis, the disorder of the gastrointestinal unction;E ...