可鍛 かたん鋳鉄 ちゅうてつではありませんでした
katanchūtetsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 可鍛鋳鉄

1. Was not malleable cast iron.; Was not ductile cast iron.

Past/Perfective
Negative
Polite
Formal Register