Core-pulling prevention winding needle - XIE SILIANG; DAI JIANYONG (2022)
Keywords: BASIC ELECTRIC ELEMENTS; CONVEYING; ELECTRICITY; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; STORING; TRANSPORTING