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Zhengzhou Olive Electronic Technology Co.,ltd, specialized in developing, manufacturing and selling for the oxygen concentrator and related healthcare products. Our factory implements ISO 13485 strictly, all of our products are in accord with medical CE. At present, our products are sold to America, Europe, Asia, Middle East and so on which are more than 90 countries.OliveA s success is base on its dedication to high quality, innovative technology and excellent service as olive has a strong team internally which every management has more than 10 years experience for R&D, quality,production and sales.Except for our own brand, we also can do OEM service. Warmly welcome you to cooperate with us for a long time, we must provide good quality & service to you.