In 1993  Shijiazhuang Elegance Stainless Steel Casting Products Co., Ltd set up.

In 2001  Elegance got IS09001 certification

In 2004  Elegance got PED97/23/EC/AD2000-WO certification.

In 2005  Shijiazhuang Broaden Trade Co., Ltd set up.

In 2008  Shijiazhuang Broaden Metal Products Co., Ltd set up

In 2009  Broaden Metal got PED97/23/EC、AD2000-WO certification

In 2010  Broaden Metal got ISO/TS16949、ISO9001 certification

In 2010  Elegance got ISO/TS16949 certification

In 2011  Shijiazhuang Boou Metal Products Co., Ltd set up

In 2015  Boou got ISO/TS16949、ISO9001 、PED97/23/EC、AD2000-WO certification