With T -type channel design, The upper die lip adopt push &pull fine-tuning / full push fine-tuning method to cooperates with special Internal deckling and External deckling system to decrease edge , and continuously online adjust the width to better reduce the costs . 1.The Product Width: Below 8000 mm . 2.Width Adjustment : Internal sealing adjustment ; External sealing adjustment ;Double seal adjustment (Double protection to prevent leakage of material). Application: CPP, CPE, PP, PE, EVA, LDPE, ect. Product Application: Food, packaging, pharmaceuticals, printing office industry; other flexible packaging materials, etc.