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Usa 1958 Scientists Use Microscopes To Study Fibers Physical Properties 

Contributor: retrofootage
Stock video ID: SBV-354568998
4KMOV (h264) - 375.1 MB
4KMP4 (hevc) - 23.3 MB
HDMOV (hevc) - 7.9 MB
HDMP4 (hevc) - 7.9 MB