♦ Ninghai Internal Combustion Engine Filter Factory is established in 1994

♦ Ningbo Xuyou  Communications Electrical Appliance Co.,Ltd  is established in 1998

♦ Xuyou Mold Factory is established in 2003

♦ Xuyou Pressure-Containing Parts  established in 2012

♦ Ningbo Xuyou  Filter Factory is completed in 2014

♦ Ningbo Xuyou Filter Factory went into operation in 2016