How does the tank rotate the turret?关于炮塔方面的问题求解答。

I want to modify the turret of the tank model. For RC. But I don't know what the specific structure is. Is there any information or model for reference?
thanks
我想修改坦克模型的炮塔。用来做RC。但是不知具体结构是怎么样的。有资料或者模型可以参考嘛?谢谢