1.easy installation,close and open. 2.aluminum Alloy 3.Good looking and clean surface, excellent heat and noise muffling, 1.easy installation,close and open. 2.aluminum Alloy . design sketch:1.easy installation,close and open.2.the aluminium access panel are very stronge3.Dimensions,colors,thickness,finished,designs and other specification can be customized according to customers' request. Access ...