... (the wind rotation device); 2,flag card (flag device), taper flagpole, Its main functions are: 1, Flying the national flag, ... you can not see the flagpole rope - that is, cordless flag poles; 2, Crown ... the flag when unloading is particularly fast; 4, Tapered flagpole as a whole-length style, that is, no matter ... by a computer-controlled, error ≤ 0.01 second. taper flagpole