4 ENGINEERING UNITS Newlong&＃039;s core business element consists of four engineering units and three types of network. CI Flexographic Printing Press Stack Type Flexographic Printing Press In-line Flexographic Printing Press Gravure Printing Press Mounter Proofer Air Shaft Ceramic Anilox Roll Slitter Multi-Wall Paper Bag Making Machine Roll Fed Type SOS Bag Making Machine Sheet Fed Type SOS Bag Making Machine Plastic Bag Making Machine Automatic Bagging Machine Heat Sealer Tying Machine Bag Sewing Machine Bag Sewing Machine Head Carpet Overedging Machine Head Bag Closing Machine Bag Closing Machine Head Portable Bag Closer