| 出生地 |
Zhejiang China (Mainland) |
| 模式的数量 |
AG-DA |
| 类型 |
通风 |
Made of extruded aluminium. Adjustable blades, rigid,heavy gauge extruded frames withreinforced mitered and welded corners. Blade spacing:20mmon centers(default). Optional opposed blade damper. Powder coating finish,standard colour RAL9016 RAL9010.Otherfinish are available. Surface mounting or concealed mounting. Sizes manufactured on request.