... Description:Aluminium Curtain wall in visibleAluminium Curtain wall in invisibleUnitized Spider system.1. ProfileAluminium alloy: 6063 T52. Surface treatment: anodizing, electrophoresis ... : 3mm, 3.Type: visible/invisible curtain wall, unitized curtain wall, spider curtain wall4. Series: 110/120/130/150/180 and more ...