... Window Alu. Alloy (can use with skylight) Usage Warehouse, workshop, shopping mall, exhibition, supper market Standard and suitable market ... Window Alu. Alloy (can use with skylight) Usage Warehouse, workshop, shopping mall, exhibition hall, supper market Standard and ... rolling door Window Alu. Alloy, Hollow glass Usage Warehouse, workshop, shopping mall, exhibition hall, supper market Standard and ...