Profile: Durham Duplex is a provider of industrial products. We design and manufacture machine knives and industrial razor blades. Some types of machines knives we avail are vertical packaging knives, horizontal packaging knives, vacuum packaging knives, case taping knives, polythene & paper knives, printing & graphics knives, fiber processing knives, plastic film knives, paper converting knives and specialized machine knives. We also stock a wide range of industrial razor blades. Features of our solid tungsten carbide & ceramic slitter razor blades are increase in edge-life, improved wear performance, supportive edge-cut, massive reductions in down time & reduced blade handling, elimination of tearing or fraying and reduced production scrap. We also supply blades with a variety of physical vapor deposition coatings. Titanium carbo nitride blades, ceramic slitter blades, trimming knife blades, fiber & tow cutter blades and surgical blades & handles are the other kinds of blades we present with.