ABA film blowing machine

ABA is a double extruder. The membrane head is designed to be three layers. Inside and outside is a screw extruder that is AA. In the middle is B layer, another screw is used for extrusion. ABA is mainly used to increase membrane tension and reduce cost. It can increase the filling of 20/ more than single screw machine.

ABA film blowing machine is popular now. Is ABA really that good? Is it really a big difference between blowing thin bags or thick bags?
Is the same formula made with a single screw without tension, without transverse force and without feel, with aba, with a transverse tension feel.?
It is said that the ABA middle layer can be used to increase the difference of the material can be saved, its electricity charges should also be higher than a single screw bar, blowing thin bags have no impact on quality.