cyanosis
发表于 2025-4-1 02:51:54
The Corrosive Action of Selenium Towards Various Materials in the Temperature Range 300 to 700°C17.4°C). Recently Soshnikova and Paikin (1) reported the results of a study on the resistance to liquid selenium of nine stainless steels and three welding alloys in the temperature range 230–600°C. All the steels tested were found to be unsuitable at high temperatures and for the manufacture of hig
碌碌之人
发表于 2025-4-1 06:54:04
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任意
发表于 2025-4-1 14:02:45
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书法
发表于 2025-4-1 17:39:01
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