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- 2002 Established in Beijing tongzhou industrial park
- 2004 Passed the ISO9001 quality system certify, mass production started
- 2005 PBN products begin to export to overseas
- 2010 Production capacity is over 10000pcs
- 2011 Authorized as High-Tec enterprise by Beijing government（2011-2014）
- 2012 Orders from overseas is over 50% of total sales revenue, hold the celebration of BOYU 10th anniversary.
- 2013 Increase the investment and built the NO.4 workshop, production capacity is over 20000pcs.
- 2014 Pass the high-tec enterprise re-evaluation by Beijing government（2014-2017）
- 2015 The NO.5 workshop go into production, production capacity is over 30000pcs.