SEPTEMBER 10, 1964 was a redletter day for our plant. It was then that the cellulose film-base workshop went into regular production after 18 months' hard work by China's own designing engineers,...
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SEPTEMBER 10, 1964 was a redletter day for our plant. It was then that the cellulose film-base workshop went into regular production after 18 months' hard work by China's own designing engineers,...