1.
2. 
3. 
14001 system certificate 19001 system certificate certificate of clean production
1.
2.
3.
1.certificate of measurement
management system 2.dual ring outstanding supplier 2010 3.dual ring outstanding supplier 2014
1.2.
3.
1.national torch program2.provincial high and new technology enterprises3.provincial high tech enterprise r & d center
1.shou contract re credit aa