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1955年1月上海灯泡厂开始正式生产钨丝。在此以前，中国钨丝全部依赖进口。 (1 gen 1955 anni – 1 gen 0 anni)

Descrizione:

1955年1月上海灯泡厂开始正式生产钨丝。在此以前，中国钨丝全部依赖进口。

Aggiunto al nastro di tempo:

工业大事年表

2 set 2023

1

0

688

Data:

1 gen 1955 anni

1 gen 0 anni

~ 0 days

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