Corrosion resistant valve
作者： Caton Walter Nathaniel
DOI:
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摘要:
lens.org 参考文章(4)
Hendrix K Caldwell, Remote gas-control-valve apparatus ,(1923)
Walter W Schroeder, Control mechanism for variable volume compressors ,(1930)
John F Jennings, Valve for corrosive liquids. ,(1911)