Ngwaahịa Defu na-anakwere asambodo sistemu ikike ikike nke mba ụwa, asambodo sistemụ njikwa gburugburu ebe obibi, sistemụ njikwa ahụike ọrụ, ka ndị ahịa nwee oke mma na mmesi obi ike n'iji ngwaahịa.
Na 2010, gafere àgwà usoro asambodo nke German Rhine TUV TS16949: 2009
Na 2014, gafere Guangdong zhongjian GB / t28001-2011 / ohsas18001-2007 ọrụ ahụike na nchekwa njikwa.
Na 2014, ụlọ ọrụ gafere Guangdong zhongjian GB/t24001-2004 / iso14001-2004 gburugburu ebe obibi nchekwa management usoro asambodo