drum blowing machine 220L, 250L in round ... , including the PLC control system and human-machine interface control system b) All technological operations ... die-head d) Transducer system adopted in extruding system enables infinite adjustment e) Energy saving ... layer, double-layer, double-color, visible transparent line g) Suitable raw materials: PE, PP, PA, PVC, HDPE, PETG plastic drum blowing machine ...