 | HK-ZB2 规格：ALUMINIUM
外形：Gravity Louver |
|  | HK-LB 规格：ALUMINIUM
外形：Weather-proof Shutter(linkage operated） |
|
|
 | HK-FB 规格：ALUMINIUM
外形：Rain-proof Louver |
|  | HK-DS 规格：ALUMINIUM
外形：Watertight Shutter |
|
|
 | HK-ZPC 规格：ALUMINIUM
外形：Combination-type Plastic Regulating Air Grille |
|  | HK-DGB 规格：ALUMINIUM
外形：45 Degree Return Air Grille c/w Bird Mesh |
|
|
 | HK-KGB 规格：ALUMINIUM
外形：Door-hinged Adjustable Supply Air Grille |
|  | HK-MGB 规格：ALUMINIUM
外形：Door-hinge Return Air Grille |
|
|
 | HK-MECG+F 规格：ALUMINIUM
外形：Door-hinge Egg Grille |
|  | HK-DG 规格：ALUMINIUM
外形：Egg Crate Grille |
|
|
|
