Saddle fitting for conduits
作者： William R Malcolm
DOI:
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摘要:
lens.org 参考文章(3)
John E Palmer, Spray nozzle devices ,(1960)
Frank X Costanzo, Clair Joseph E St, Side outlet coupling ,(1965)
Frey Charles, Derivation clip serving for junction of a cock to a water conduit ,(1937)