BUILDING MATERIALS OF METAL; POLES, POSTS AND PROPS OF METAL; SCAFFOLDING OF METAL; SHEETS AND PLATES OF METAL; METAL BOLTS, METAL BRACKETS FOR ASSEMBLY PURPOSES, METAL PIPE AND CABLE CLIPS, ALL OF THE FOREGOING FOR STRUCTURAL USE
Metal GoodsSOLAR CELLS, SOLAR MODULES, AND SOLAR ARRAYS AND STRUCTURAL PARTS AND STRUCTURAL FITTINGS THEREFOR, ALL FOR SOLAR ENERGY COLLECTION AND STORAGE AND FOR SOLAR HEATING PURPOSES
Environmental Control Apparatus