金属きんぞく被膜ひまく加工かこうではありませんでした
kinzokuhimaku kakōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 金属被膜加工

1. Was not metal film processing.; Was not doing metal film processing.

Past/Perfective
Negative
Polite
Formal Register
Computing