導電 どうでん せいプラスチックじゃなかったです
dō denseipurasuchikkujanakattadesu

Noun
Desu Copula

The polite, past negative form of 導電性プラスチック

1. Wasn't conductive plastic.; Wasn't a conductive plastic.

Past/Perfective
Negative
Polite
Casual Register