Aoheng Trading Co. Ltd is located in Zibo, Shandong province, which is a famous chemical city in China, hoping to offer more professional and technical services to the international sales and marketing activities. The products we offer are environmental friendly and of high quality. Such as refrigerants products which implemented worldwide largest CDM Project, worldwide largest PTFE products and other products of high quality. As the ancient saying, It's a delight to have friends coming from afar. And we are sure integrity is priceless! We're ready to provide your services wholeheartedly.