We specializing in supplying round diffuser with damper for hotel, shopping mall and office decoration. The body is made from aluminum formed which could be powder coated or anodized. Thickness of aluminum sheet 1mm. Inner core is removable from outer frame. The damper is made from PP injection. Specifications in details as follows: Part No. Net Size Size for 4pcs/CTN QTY for 40' Container QH-150 D255*H70 L27*W27*H30 9000PCS QH-200 D305*H70 L32*W32*H30 6600PCS QH-250 D355*H70 L37*W37*H30 5000PCS QH-300 D405*H70 L42*W42*H30 3800PCS QH-350 D455*H70 L47*W47*H30 3000PCS
