... Co-extrusion Rotary Die Film Blowing Machine,three layer rotary die film blowing machine.film blowing Name:3SJ-G Series Three layer Co-extrusion Rotary Die Film Blowing MachineperformanceThe lines ... ,meat-feeding ,salt vegetables,freshi milk,drink. Features1,Die head is layer type siral mandrel,continuous 360°rotation.2, ... 3SJ-G Series Three layer Co-extrusion Rotary Die Film Blowing Machine