Selective three-layer coextrusion film blowing machine is equipped with: 1, automatic vacuum loader 2, surface treatment 3, air compressor 4, air cooler Three-layer co-extrusion film blowing machine main technical parameter: Model 3SJ-50 3SJ-55 3SJ-65 Applied material HDPE LDPE LLDPE Product width 800-1500mm 1200-2000mm 1600-2500mm