... .1. Weighing sensors, and Frequency Control electrical, converter, computer control system of the closed-loop control ... accurate.2. Speed screw feeder, weighing helix, converter, computer control system of powder delivery closed-loop ... (%) Eastern Europe USD 245,046 1.86 Africa USD 220,952 1.68 Western Europe USD 8,000 0 ... .06 Domestic Market USD 12, ...