... elegant anodized aluminum frame b, thickness: polycarbonate thickness between 3mm to 9mm,tempered glass,mirror glass,single or dual pane are ... c, UV proof d, impact-resistant and burglar-retardant e, resistance to wind load :Class 3 Water-tightness:Class 3 air ... used for a long time without maintenancej, It is applicable to various modern, simple and fashionable architectural styles, such as ...