A:
(1) scratch the main reasons: damage or wire guide wheel guide wheel out, administered through injury, mold damage or too small, disk rolling wire or rolling when the bruising crushed. Prevention measures: exchange guide wheel guide wheel to prevent the wire out, change threading pipe, choose the right dies, exchange reels.
(2) jumper main reasons are: die too far away from the distribution boards, off tension size inconsistent, and so die too. Prevention measures: rationalization and distribution boards from the die to adjust the number of Actinobacillus Zhang Liji, a reasonable matching die.