located in qingdao port, qingdao duratight focuses to become a professional and reliable manufacturer graphite related products. all kinds of products are extensively applied in those industrial fields as petroleum, chemical industry, electric power, metallurgy, machinery, automobile, shipping building, pharmacy, aerospace industry, nuclear industry, etc. qingdao duratight group hold two companies, qingdao duratight sealing product co.,ltd and qingdao duratight carbon duratight has its own know-how and comprehensive capacity for research and development. controlled by iso-9001-2000 quality system, duratight operation team deeply understands “quality is life” principle. we thank all our customers who regularly use the products of duratight for their support and encouragement. we promise with all sincerity that we will continue devoting our effort in manufacturing high quality products! trust comes from quality!

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