Air grille Material: galvanized steel Color: white(ral9010,ral9016) 1) Material: galvanized sheet steel, powder coated white(RAL-9010).2) Circular style air diffuser size: 80mm,100mm 125mm,150mm,200mm,250mm3) Surface coating: weatherproof polyester powder coating 4) Style: circular or as per your requestProduct merits:1) Surface smoothness and easy cleaning 2) High precision, rigidity and ...