Who is He Chengfeng? Optoelectronic technical director

He Chengfeng: Male, China nationality, without permanent residency abroad, born in 1978, with a college degree. 1998 -2007 worked in ouhai district people's hospital, served as the general manager of electro-optic (Suzhou) co., ltd in 2008-2009, and is now the marketing manager of electro-optic explosion-proof technology co., ltd.