QAI于2019年5月21日至23日在宾夕法尼亚州费城参加2019 北美 LightFair 灯展。 照明行业Read more
Founded in 1995 by a group of experienced certification and testing experts, QAI is an independent third-party testing, inspection and certification organization which serves the building industry, government and individuals with cost effective solutions through our global, in-house capabilities / services.