水轮机用28瓣石墨分瓣密封环-28SegmentsGraphiteSealRingforHydroturbine,23-12-2014

水轮机用28瓣石墨分瓣密封环

水轮机用28瓣石墨分瓣密封环

28 Segments Graphite Seal Ring for Hydroturbine

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