Services For Plastics, Inc. is a manufacturer of barrels, screws, screw tip assemblies, nozzles, nozzle tips, and end caps for the plastic molding industry. We also distribute a complete line of industrial accessories for the injection, extrusion, thermoset, and blow-molding industries. In addition, we specialize in upsize/downsize conversions, thermoset/thermoplastic conversions, and reconditioning services for barrels and screws.