ISO9001 FDA Chilolezo cha bizinesi Satifiketi ya AAA grade integrity single grade ya China spice oil industry AAA credit management demonstration enterprise Satifiketi yowerengera zamakampani a AAA Ubwino wa AAA, gawo lokhulupirika lautumiki Luo Dongming, wazamalonda wowona mtima waku China AAA level contract yokhazikika komanso bizinesi yodalirika AAA satifiketi yolembetsa ngongole EBO SGS Satifiketi yamabizinesi apamwamba kwambiri Satifiketi yapagulu yotsatiridwa ndi contract ndi Valuing Credit ku Ji'an City