拉制单晶硅用三瓣式石墨坩埚1-GraphiteCrucibleinThreeSegmentsforPullingofMono-silicon

拉制单晶硅用三瓣式石墨坩埚

拉制单晶硅用三瓣式石墨坩埚1

Graphite Crucible in Three Segments for Pulling of Mono-silicon

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