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15 nov 1991 ano - 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。

Descrição:

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。

Adicionado na linha do tempo:

工业大事年表

2 set 2023

1

0

686

Data:

15 nov 1991 ano

Agora

~ 33 years ago

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