concealed door closer material: aluminium color: silver / gold / aluminium color door width: 500mm-2300mm door weight: 20-90 concealed door closer1, item number: VW-DC-1682, pictures:3, material: aluminium4, color: silver / gold / aluminium color5, door width: 900*1200 MM6, door weight: 45-75 KGS7, size: 219*31mm8, shape: square9, suitable for steel or hardware or plastic door concealed door ...