Translation of "형성층" in English

형성층 껍질도 있습니다

or the cambium bark.

자, 형성층 껍질입니다 전나무 속의 하얀 층이죠

Okay, see, the cambium bark and that's that white layer there.

형성층 껍질을 선택하셨군요? 전나무 속의 하얀 층이죠

Okay, so you've gone for the cambium bark? And that's that white layer there.