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मराठी
Srpski језик 2021-05-28
8. kelebek vanaeçift konumlu düzenleme, boyunlu kanal, düşük gürültü, gazlaştırma fenomeni, atmosfere az miktarda sızıntı ve aşındırıcı ortamda seçilebilir.
Kullanırkenkelebek vana under special conditions, such as throttling regulation, strict sealing requirement, severe wear, low temperature (cryogenic), etc., special kelebek vana with three eccentricity or double eccentricity of specially designed metal sealing regulating device shall be used.