Corrosion proof fflowmeter
作者： Gail W Graves , Jr Frank G Weeden
DOI:
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摘要:
lens.org 参考文章(3)
Wesley G Martin, Enamel coated welded joint ,(1942)
Edward J Chu, Corrosion proof pipe fitting ,(1959)
Mulard Georges, Raccord de tuyauterie à pose rapide ,(1954)