... Film Blowing Machine : 3 layers co-extrusion stacking-type blown die, dual-lip cooling ring, IBC, bubble FFS Film Blowing Machine is used for producing tubular film. The film ... multilayer blown film lines adopts a lot of new technique and technology such as three-layer-coextrusion ... lip cooling ring, IBC, bubble stabilizing device, multi-layer rotation take-off, corona treatment station, central-guide ...