PE Film Blowing Machine,rotary die head film blowing machine,double rewinding film extruder,extruding machine.. 3FM3500-I THREE-LAYER COEXTRUSION AGRICULTUREEquipment name 3FM3500-I three-layer coextrusion agriculturestock unit of measurement Laiwu Runhua Plastic Machinery Co.,LtdA, Equipment specifications and technical parameter1, Single screw extruder(totally 3 sets)SJ-120/30 1.1screwa, ...