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The TYT spool.as a perfect combination of the spool and the scissors,it can sort the spool perfectly and steady it on the table,and adsorb needle on the inner magnet safely. The cotton can be cut off by the knife inside of the spool,without the scissors.Leaveing a little part of the cotton for next use.
Beijing union university
Biochemical engineering college
beijing, China
Beijing union university
Biochemical engineering college
beijing, China
Tao Zheng ; Tan Yanran ; Sun Jian ; Yuan Chenxing
Beijing union university
Biochemical engineering college
beijing, China
Tan Yanran
Beijing union university
Biochemical engineering college
beijing, China
Sun Jian
Beijing union university
Biochemical engineering college
beijing, China
Yuan Chenxing