Aluminum air ventilation/aluminum air louver/sun shutter/louver

decorative aluminium linear bar grille for ventilation  1.Features:  Aluminum ceiling shutter prevent indoor light outside.It makes room bright and warm in winter by absorbing sunshine,while in summer it protects people's eyes from strong light and keep good ventilation by fresh and cool air. 2.Material: International standard 1100H24, 3003H24, or 5005H24 aluminum alloy depending on requirements; galvanized iron and stainless steel are made available as well. 3. Advantages of aluminum linear bar grills :   A: great wind reduction effect  B: shock resistant, fire proof, anti-corrosion, anti-fouling, good ventilation  C: simple structure, easy installation and maintenance  D: various shapes increase aesthetic effects and create open interspaces 4.Product Details         5.Visual Effect   6.Factory Tour Our production site:   production process:   Factory and Workshop:   Certification and test report:     Domestic Projects:   Major Clients:   Other ceiling models:     Thanks for your trust and precious time! Please visit our website  http://mascei.en.alibaba.com for more attractive aluminum ceiling and shutters.   Contact:Mae Yao SKYPE:maeyao88 Mob:+86 13521879946