SHANGHAI NEWS: Domestic 1800 pairs of lead-coated communication mirrors were put into production
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SHANGHAI NEWS: Domestic 1800 pairs of lead-coated communication mirrors were put into production
Industry
Length:
09:30:00
Date:
1982-01-01
Collection
Keywords:
1800 pairs of lead-clad communication mirrors |
The 1800 pairs of lead-clad communication mirrors of the Shanghai Telecom Equipment Factory were officially put into production. There were scenes of production and product. The video has no narration.