The String Tying process starts when the product passes through the machine, in which, the string is tightened by the lead. And then passing the start of keys point and the string is inserted. The attached head node attaches and the string is cut. A new string will then be ready for the next product. Types of string tying materials are LDPE, PET, cotton, elastomer, elastic, viscous and forms as Poly Tape, Twisted Poly and Spiral Twist.
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