... rolling door(within 15m2) Window Alu. Alloy (can use with skylight) Usage Warehouse, workshop, shopping mall, exhibition hall, ... rolling door (within 15m2) Window Alu. Alloy (can use with skylight) Usage Warehouse, workshop, shopping mall, exhibition hall, ... structure workshop(PTH) loading & color steel tile(PTH) ISO 9001:2008 Certified Steel Structure Prefabricated Warehouse/steel structure Workshop/ ...