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control system, comprising two coaxial coils rotating in the same sense, with continuous control automatic speed, without reference of the material in processing on tastatori externalbut with the continuous comparison of the speed of rotation of the two reels
control system, comprising two coaxial coils rotating in the same sense, with continuous control automatic speed, without reference of the material in processing on tastatori externalbut with the continuous comparison of the speed of rotation of the two reels