Alaabooyinka Defu waxay qaataan shahaadada nidaamka tayada awood ee caalamiga ah, shahaadada nidaamka maaraynta deegaanka, nidaamka maaraynta caafimaadka shaqada, si ay macaamiishu u helaan hubin tayo iyo badbaado badan oo isticmaalka alaabta.
In 2010, maray shahaadada nidaamka tayada ee German Rhine TUV TS16949: 2009
2014-kii, wuxuu gudbay Guangdong zhongjian GB/t28001-2011 / ohsas18001-2007 maamulka caafimaadka iyo badbaadada shaqada
2014, shirkadu waxay ka gudubtay Guangdong zhongjian GB/t24001-2004 / iso14001-2004 shahaadada nidaamka maaraynta badbaadada deegaanka