Located in Qingdao City of ShanDong Province, Qingdao Duratight is a professional and reliable manufacturer of graphite related products. All kinds of products are extensively applied in those industrial fields such as petroleum, chemical industry, and electric power. Our operation team firmly believes in the principle of Quality is Life. Accordingly, we invite experts to research and develop quality control systems in order to computerize our management level. We offer a complete range ...   |