1. Desktop: 1200*450mm using high density polyethylene (HDPE) as raw material, hollow blow molding process;
2. Seat back: 420*420mm reinforced high-quality PP (polypropylene) multi-element composite material by injection molding;
3. Book cover: The wall thickness of high quality stretched steel ≥1.0mm;
4. Table and chair tube wall: 1.8mm wall thickness round tube, adjustable;
5. Table foot: 1.8mm wall thickness, foot cover bottom has 4 balance foot cover.