0249 - China's 1969 Autumn Export Commodities Fair Opens In Kwangchow. Visi...Front
China's 1969 Autumn Export Commodities Fair Opens In Kwangchow. Visitors are watching with great interest a precision metallic line standard of world advanced level. It was made by the revolutionary workers and technicians of a small plant in Peking. It is used to judge the precision of precision machine tools and appliances.
Image details
| Front | Yes |
|---|---|
| Place | |
| Year | 1969 |
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