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15 nov 1991 anni - 1991年11月15日国内最先进的碱性焊条自动生产线在上海电焊条总厂建成投产。

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1991年11月15日国内最先进的碱性焊条自动生产线在上海电焊条总厂建成投产。

Aggiunto al nastro di tempo:

工业大事年表

2 set 2023

1

0

688

Data:

15 nov 1991 anni

Adesso

~ 33 years ago

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