Series: AWPL are recommended to install at External wall of building. And was specially designed for Fresh Air Intake and Extract Purposes.

FEATURES Series AWPL Overlap Margins — 1-1/4 inches wide (1-1/2", 2" available if specified)
Aluminium Construction — Heavy Gauge extruted Aluminium Blade and Margin.
Baked Enamel Finish and anodized finish available.
Series SWPL Overlap Margin — 1-1/4 inches wide (1-1/2", 2" available if specified)
Mild steel — Heavy Gauge steel Construct Margin and blade.
Baked Enamel and powder coating finish, specied paint finishes available.
Accessories: Bird Screen.

型號：AWPL，SWPL AWPL，SWPL型號適用於大廈壁的安裝，經過特別設計頁面提供適當之防水功能用於鮮或排氣用途，更可由客人指定配上蚊網或雀網。

型號：AWPL特性 冚口邊 - 有1-¼”，1"，¾” 闊供選擇，配合客人要求。
鋁合金面經過無色陽極化處理，也可由客人自選顏色焗漆上色。
型號：SWPL特性 冚口邊 - 任何尺寸均可指定訂做，標準供應為1-¼”。
鋼製風口可由客人自選顏色焗漆上色，標準供應為白色。