
Piston Rings For General Engineering; M-rings, Taper Faced Compression Rings, 200 Up To 700 Mm Nominal Diameter
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Piston Rings For General Engineering; M-rings, Taper Faced Compression Rings, 200 Up To 700 Mm Nominal Diameter
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频