complaints and suggestions -凯发k8国际首页登录

specialized investigation and processing, until you receive a satisfactory answer.

welcome to noa's complaint and grievance interface. noa pursues the concept of "service comes first", abides by the code of professional ethics, and is committed to providing customers with quality services and good third-party credit guarantee.

we have opened the following feedback channels and arranged staff to investigate and deal with your complaints or grievances to provide you with satisfactory answers.

complaints about certification: ( 86) 400 821 5138*3     complaints about inspection and testing : ( 86) 400 821 5138*4