This textbook [topic-って] recycled-paper [from-で] made-[casual explanatory-てんだ].
再生紙 'recycled paper' — 再生 'recycling/regeneration' + 紙 'paper.' できてんだ is a casual contraction chain: できている → できてる → できてんだ (with explanatory んだ). The initial discovery tone suggests the speaker just noticed this fact.