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External Louver
Model No:SLB Product Name:Perforated Panel
Model No:FK-ZB1 Product Name:Self-shutting Louver Grille
Model No:FK-SFB Product Name:Double-layer Weather-proof Shutter
Model No:FK-DS Product Name:Watertight Shutter
Model No:FK-ZB2 Product Name:Self-shutting Louver
Model No:FK-LB Product Name:Weather-proof Shutter(linkage operated)
Model No:FK-FB Product Name:Weather-proof Air Louver