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Rizhao Sanqi Medical & Health Products Co., Ltd. is one of China’s famous manufacturers for medical devices, which is located in beautiful Rizhao city, Shandong province. It has a professional and experienced product line, as the same time it own over 40,000 meter occupied area and a series of workshops. Their first brand ” 3Q ” was found in 1993, nearly 30-years history. Brand 3Q has multiple N95 masks, such as 100GS surgical N95 mask, 100G N95 mask, 100SB N95 mask which are all approved by CDC NIOSH.