通電 つうでん焼結 しょうけつ ほうではありませんでした
tsū den shōketsuhōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 通電焼結法

1. Was not powder metallurgy.; Was not sintering with electricity.

Past/Perfective
Negative
Polite
Formal Register