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Subject: (butterfly) lug valve tech. lug valve = Разновидность дискового затвора (butterfly valve). В противоположность WAFER valve (галетный - ?).В частности, в контексте: Thanks to the threaded lugs, the LUG type can be mounted between two flanges or as head valve of the piping, than in contact with only one flange. Заранее спасибо |
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