Length control device for film unwinding

The utility model discloses a length control device for film unwinding, which comprises a winding and unwinding mechanism, a winding and unwinding mechanism, a winding and unwinding mechanism, a winding and unwinding mechanism, a winding and unwinding mechanism, a winding and unwinding mechanism, a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG NIANFU, XUE ZHENGDONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BORING CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES MACHINE TOOLS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS METAL-WORKING NOT OTHERWISE PROVIDED FOR PACKING PERFORMING OPERATIONS PHYSICS STORING TESTING TRANSPORTING TURNING
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