1.內架(jia):鋼結構(gou)(gou)內架(jia),結構(gou)(gou)穩定,使(shi)用(yong)壽(shou)命長; 2.海綿:聚氨酯PU一次性(xing)發泡(pao)壓鑄成型(xing)定型(xing)棉,密(mi)度高(gao)達50KG/m3,久坐不變形; 3.面料:布藝柔軟,高(gao)回彈力,不易起球,顏色純正(zheng),不掉色; 4.腳架(jia):圓管鐵噴涂腳架(jia)