1.內(nei)架:鋼(gang)結構(gou)內(nei)架,結構(gou)穩定,使(shi)用壽命長; 2.海(hai)綿:聚氨酯PU一(yi)次性發泡壓鑄成型定型棉(mian),密(mi)度高達50KG/m3,久坐不(bu)變形; 3.面料:布藝柔(rou)軟,高回(hui)彈力,不(bu)易起球,顏色純正(zheng),不(bu)掉(diao)色; 4.腳:防刮(gua)花可調節(jie)腳墊