International Earth Science Olympiad Problems (2007-2009)
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Acabados de cara de junta de bridas. Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings.Descrição completa
61557-6-2007
Descripción: Acabados de cara de junta de bridas. Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings.
