Carbonization is the use of carbon graphite - graphite seal ring when one of the main reasons.

石墨炭化是使用碳—石墨环时密封失效的主要原因之一。

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BONTAO HMCG (high Modulus Carbon Graphite) means high sensitivity, high strength and high fatigue proof capabilities of the rod.

趣道hmcg高模数碳纤维，使竿体具有高敏感性和高强度及抗疲劳性。

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The result is a seat with physical properties that are far superior to conventional ball valve seats of carbon graphite construction.

其结果是一个是远远优于传统球碳石墨阀座建设物理性质的席位。

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Klatten additionally controls chemical manufacturer Altana and holds stakes in wind power outfits and carbon and graphite producers.

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She also controls chemical manufacturer Altana and holds stakes in wind power outfit Nordex AG and carbon and graphite producer SGL and Geohumus, which focuses on developing a water storing granulate to be used in agriculture.

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Germany's SGL Carbon (6, SGG) has fallen 33% since May and has yet to recover as it supplies primarily the hard-hit steel and semiconductor industries with carbon and graphite products, which include electrodes, laboratory components and furnace linings.

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