Multi-piece combined turnover louver blade

摘要

Disclosed is a multi-piece combined turnover louver blade which includes a main blade (1) and rotary blades (2). The main blade (1) is composed of an outside blade (11) and an inside blade (12) integrated together. A juncture part of the two blades is formed at the inner end of the outside blade (11) in the width direction and the outer end of the inside blade (12) in the width direction. An included angleγ