0316 - Formerly a neighbourhood-run workshop, the Soochow No. 3 Optical Ins...Back
Formerly a neighbourhood-run workshop, the Soochow No. 3 Optical Instruments Plant has produced the wire-electrode cutter with photo electric tracing, which measures up to advanced levels, by displaying the spirit of self-reliance during the Cultural Revolution. Photo shows workers of the plant testing the cutters.
Image details
| Front | |
|---|---|
| Place | |
| Year | 1974 |
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