2012年开始研发，历时2年，2014年初成功为美国庄臣研制一款新型电阻产品且申请了专利，专利电阻用于香薰产品
In 2012 started to develop new product for Johnson,which last for 2 years.Early in 2014 we successfully developed a new type of resistance products for Johnson and applied for a patent, patent resistance used in aromatherapy products.