Emblem of Angola
In the center is a machete and hoe.  These show the revolution through which the nation gained independence, and the importance of agricultural workers.  Above both emblems is a red star.  The red star is often in many socialist images.  The rising sun is the normal symbol of a new beginning.  The half cog-wheel is for the industrial workers.  The half vine of coffee and cotton leaves is for the coffee and cotton industry.